Cycle Sports Facilities - Design Guide - Facilities Guidance Note

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Cycle Sports Facilities - Design Guide - Facilities Guidance Note
Cycling   06:10:03   17:58   Page i

                                                           Facilities
                                                      Guidance Note

                     Cycle Sports Facilities – Design Guide
Cycle Sports Facilities - Design Guide - Facilities Guidance Note
Cycling   06:10:03   17:58   Page ii

          Cycling Sports Facilities

                                  Contents

                                  Introduction                                                                1
                                  Cycle racing tracks and velodromes                                          2
                                  Closed road racing circuits                                             18
                                  BMX race tracks                                                         22
                                  Cycle speedway tracks                                                   31
                                  Mountain bike courses and trails                                        36
                                  Cyclo-cross circuits                                                    39
                                  Grass tracks                                                            45
                                  Road racing and time trials                                             47
                                  School facilities                                                       48
                                  Multi-use facilities                                                    51
                                  Cycle sport for disabled people                                         56
                                  Appendix A – Health and safety                                          57
                                  Authors                                                                 62
                                  Useful addresses                                                        63
                                  References                                                              64

                                  This guidance is supported by:

                                  Acknowledgements
                                  Sport England and British Cycling would like to thank the following
                                  contributors to this design guide:
                                  Ron Webb of R V Webb Consultants for the section Cycle Racing Tracks
                                  and Velodromes
                                  Bob Howden and Don Wiseman for their contributions to Closed Road
                                  Racing Circuits
                                  Peter Elmy and Keith Brookes of Colchester Stars Cycle Speedway
                                  Nick Day of Colchester Borough Council and David Hemsley for their
                                  contributions to Cycle Speedway Tracks
                                  Andy Ballentyne and Mark Burchett for their contributions to Grass Tracks
                                  Ron Akass for his contribution to Health and Safety
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            Introduction                                           The purpose of this guidance is to provide
                                                                   an introduction to the design and planning
            This design guide covers the design and                requirements for each type of facility, however it
            planning of facilities for all the cycling             is not a comprehensive manual of construction
            disciplines embraced by British Cycling. The           specifications. Any individual or organisation
            facilities cater for all levels of participation and   seeking to develop any of the facilities included
            include the following:                                 in this guidance will need to employ specialists
                                                                   with experience in the design and construction
            ●   cycle racing tracks and velodromes
                                                                   of cycling facilities.
            ●   closed road racing circuits
                                                                   If you are considering the provision of a new
            ●   BMX race tracks                                    cycling facility, you are advised to consult the
            ●   cycle speedway tracks                              facility officer at British Cycling at the earliest
                                                                   stage for advice on the type of facility required.
            ●   mountain bike courses and trails                   You should also hold early consultations with
            ●   cyclo-cross circuits                               the appropriate regional office of Sport England
                                                                   (see Useful Addresses).
            ●   grass tracks
                                                                   This design guide complements the earlier
            ●   road racing and time trials
                                                                   Facilities Strategy for Cycle Sport in England
            ●   school facilities                                  produced in 1999 by the then British Cycling
            ●   multi-use facilities                               Federation (BCF) and Sport England. The
                                                                   strategy aims to provide a comprehensive
            ●   cycle sport for disabled people.                   framework for the development of facilities for
            While there will always be a need for access           cycling in England at national, regional and
            to roads and rights of way, purpose-built              local levels. The strategy is concerned with
            facilities will be of increasing importance in         ensuring that the right facilities are provided in
            the development of cycling.                            the right place at the right time.

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          Cycling Sports Facilities

                     Cycle racing tracks and velodromes                    Cycling on the best specification for their
                                                                           particular area. The project in your area could
                     The provision of a new track, or the refurbishment    be an important part of the overall facilities
                     of an existing one, will normally be motivated by     scheme being developed by Sport England.
                     local cycle racing clubs intent on furthering
                                                                           This document is intended as a guide for
                     the standards of the sport and the development
                                                                           local authorities when initially considering the
                     of youth talent towards na tional and
                                                                           construction or refurbishment of a cycle track.
                     international competition.
                                                                           The types of track and the variation of sizes are
                     A purpose-built track can also benefit user           addressed on the following pages.
                     groups not currently involved in organised cycling.
                     A project to enable schools to adopt track            New tracks
                     cycling as an optional sport would involve county     ●   Cycle tracks can be built indoors or outdoors
                     or borough education departments, which could             in a variety of materials and in different
                     be of value to the community and augur well for           sizes.
                     the future of the venue.
                                                                           ●   New tracks are now constructed based on
                     Youth and adult leisure schemes are possible              the metric distance of cycling events:
                     added activities. Persuading leisure cyclists to          250m track is 4 laps = 1km
                     exchange public roads for a dedicated cycling
                     venue is a forward step. Riding a bicycle on a            333.333m track is 3 laps = 1km
                     public byway is an intimidating experience and            500m track is 2 laps = 1km
                     the hardy few that persist are only a small           ●   Smaller tracks are used for indoor training
                     percentage of the number of people in the UK              facilities and in multi-purpose stadiums to
                     who own a bicycle.                                        stage annual spectacular professional Six-
                     Therefore, when deciding on a track building              Day Race promotions.
                     project, it may be necessary to consider not          ●   The popular sizes for small tracks are
                     only the specification of the cycle racing track,         166.666m (6 laps = 1km) and 200m (5 laps =
                     but other community leisure pursuits that could           1km). For world championships and
                     be incorporated in the scheme. Cycle tracks               Olympic Games, the smallest acceptable
                     come in several sizes and there is flexibility to         track is 250m. At national cycling centres
                     include local needs within the central arena              where elite representative teams are
                     area. Local authorities should consult British            trained, tracks should ideally be 250m.

                     Young track cyclists – Herne Hill, London

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            Existing tracks                                    A local authority may need to make a decision
                                                               on the refurbishment of an existing track. The
            There are many 400m tracks in existence
                                                               track may be situated in an area that is no
            around the world and quarter-mile tracks, which
                                                               longer ideal for its intended use, or the land may
            were once an accepted standard, can be found
                                                               have more important considerations for town
            in the UK. Such tracks originate from times        and country planning. In other cases, the
            when sport was less concerned with world           refurbishment of the existing track may require
            standards and town councils tended to build a      complex and expensive engineering solutions.
            cycle track around a football pitch.               In such situations it may be a preferred option
            Changing attitudes have seen sports develop a      to consult with cycle clubs and British Cycling
            more elitist approach to their needs. We also      with a view to building a new track of modern
            now accept that certain sports are not suitable    design on another site.
            to share venues. However, British Cycling          A local authority may consider that an existing
            appreciates that some quarter-mile – and larger    cycling facility has not been well used in recent
            tracks – can still play an important role in the   times due to the condition of the venue and the
            development of the sport’s grassroots and          amenities. Ongoing dialogue between the
            can cater for the increase in leisure cycling.     authority and user groups is essential. It is in
            Where certain older tracks are marked for          the interests of the authority that the venue is
            redevelopment some changes to the geometry         used more often and it is in the cycling clubs’
            in order to conform to metric distances might      interests to attract more leisure activities to the
            suit the identified user groups.                   track. Leisure cyclists may, in time, become
                                                               active club cyclists.

            The National Cycling Centre, Manchester

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                     Indoor tracks                                         To gain a perspective of the cost of building a
                                                                           velodrome such as the National Cycling Centre
                     Velodromes, such as the Manchester National
                                                                           or the Sydney Olympic Velodrome, it is sobering
                     Cycling Centre, house a track built with a timber
                                                                           to note that the cost of the 250m timber cycle
                     surface decking, usually Siberian pine, supported
                                                                           track – the visual centrepiece of the stadium – can
                     by a timber understructure. Indoor tracks built to
                                                                           be less than 2% of the total cost of the facility.
                     host a world championship will be either 250m
                     or 333.333m. It is now considered the norm to         A 333.333m track requires a much larger
                     build 250m tracks.                                    building footprint and span. To achieve this, the
                     The popularity of the 250m track stems from           overall volume of the building increases out of
                     the fact that racing on it is more spectacular        all proportion to the increase in the size of the
                     than on the larger 333.333m track. The design         track. Funding a velodrome with a 333.333m
                     offers better racing lines for cyclists, and          track is prohibitive.
                     spectators feel they are closer to the action on      The National Cycling Centre is a showcase for
                     the smaller size track.                               international cycling events in Britain. It is
                     The 250m track is the better of the two options       unlikely that another velodrome of this size and
                     to build indoors. The overriding advantage of         cost will be built again in the UK unless a British
                     the smaller track is the lower cost of the building   city is in a position to bid for an Olympic Games.
                     to house it and the spectator accommodation.          There is, however, a need for several indoor
                     The velodrome building to house a 250m track          cycle tracks to be built as training facilities. The
                     will require a free span structure of 120m. The       price of these venues can be kept to a minimum
                     height of the building will preclude most             with a cost-effective building shell providing a
                     urban sites.                                          small volume of spectator/educational trackside

                     The Superdome, Adelaide

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            Calshot Activities Centre, Hampshire

            seating for up to 500 persons. Simple, proven       timber track is 142.857m or 7 laps = 1km. The
            building designs are available. For the national    track is part of Hampshire County Council’s
            elite training plan, a 250m track is desirable.     educational and leisure facility, providing sports
                                                                facilities for up to 200 school children per week
            Where space is limited or a high-profile building
                                                                plus evening and weekend adult cycling.
            is unacceptable to local planning authorities,
            thereby jeopardising a project in an area of        A disused airfield hangar or similar shell may be
            stated importance to British Cycling, then a        suitable for a training/competition track of 166.666m.
            200m track is a good compromise for general
                                                                Lighting
            training and racing. The geometry of the design
                                                                An ideal solution for both lighting and PA
            can be developed to accommodate the desired
                                                                systems is a rectangular catwalk suspended
            training programme without any great adjustment
            to the cyclist’s orientation.                       from the roof structure. Of simple box design
                                                                with handrails at 1200mm and mesh sides, the
            In the UK climate, indoor tracks are needed for     catwalk should follow the length of the track
            the training of elite national cyclists, but they   straights, directly over the inner arena edge of
            are also essential to provide all-year-round        the safety zone, this being about 3.5m from the
            activity. Schools will be encouraged to place       track edge. The short sides of the rectangular
            track cycling on the list of recognised school      catwalk will then be well inside the semi-circular
            sports, but year-round availability of the venue    ends of the arena. Though these sides are
            must be guaranteed.                                 distanced from the track edge of the curves, the
            Tracks can be smaller and fill an important role    lighting value on the track surface will be similar
            in activity centres. At the Calshot Activities      to that above the straights due to the banking of
            Centre in Hampshire, a track is situated in the     the curves reflecting light and by directional
            restricted area of half an aircraft hangar. The     adjustment of the lamps.

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                     Indoor track construction, Sydney Olympic track

                     Construction detail, National Cycling Centre, Manchester

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            The lights are directed at the blue track line, at
            midway on the width of the track surface. The
            lights should be positioned about 8–10m apart
            to ensure an even spread of the light value on
            the track. The direction of light fittings and
            speakers can be fine tuned and repositioned for
            various arena spor ts and functions by one
            person, even during track use.
            This structure is a far better solution than an
            oval ring of lights above the track, which will
            require the use of a cherry-picker vehicle to
            change a light fitting.
            Surface light values for an indoor track are 300
            lux for training or general activity and 600 lux for
            racing events. A cut-in emergency lighting
            pattern, battery powered, of 150 lux is a              Semi-covered track, Cottbus, Germany
            necessity. Should television lighting be required,
            extra lighting can be added to the catwalk to
            bring the surface light value to 1200 lux. The         cost of the engineering solution. Structures are
            goal is to illuminate the track for the cyclists       cantilevered or have building trusses supported
            without throwing shadows, a dangerous                  by masts in the central arena. Experience has
            distraction when riders are in bunched races.          shown that in most cases it would have been
                                                                   better to go the whole way and roof the entire
            The catwalk should be about 12–14m above the           stadium. If a decision to roof the central
            arena floor.                                           opening is made at a later date the engineers
            Semi-roofed tracks                                     may be compromised by the original design.

            Tracks can be built with a roof that extends over      Despite the extra funding required, a complete
            the spectator accommodation and at least 5m            roof cover offers the valuable bonus of a usable
            past the inner perimeter of the track safety           central arena area and the venue becomes a
            zone. These velodromes afford protection from          multi-purpose stadium.
            normal rainy weather and could possibly be             Lighting
            used for all-year training and a schools activity      Light fittings and PA speakers would be
            programme.                                             positioned under the cantilevered roof above
            In some countries existing concrete tracks have        the track safety zone. Lighting in the curves
            been semi-covered to ensure regular cycling            would not be as intense as the value over the
            use. If a semi-covered stadium were built with         straights, thereby avoiding pools of light.
            the track made of timber, the track surface
                                                                   Outdoor tracks
            would need to be hardwood.
                                                                   In order to maintain TV coverage in all weather
            The stadium is cer tainly still open to the
                                                                   conditions the Union Cycliste Internationale
            elements. Wind-driven rain may reach parts of
                                                                   (UCI), the controlling body of world cycling,
            the inner track surface and, in winter, extreme
                                                                   prefers world championships to be allocated to
            cold may deter cyclists from serious training.
                                                                   bidders with covered velodromes. If a track
            If you have limited funding, a semi-covered            world championship is awarded to an outdoor
            velodrome is a compromise solution. The                track in the future, it will surely be in sunny
            argument against semi-covered tracks is the            climes.

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                     Outdoor tracks may be used for other important
                     events, such as World Cup, Grand Prix and
                     junior world championships. The minimum size
                     of 250m still applies though there is no maximum
                     size for an outdoor track. The maximum in
                     practical terms is 500m.
                     An advantage of an outdoor cycling stadium
                     is that after the track, terracing and basic
                     amenities are in place, further infrastructure
                     may progress as funding becomes available.
                     Should an important event be planned in the
                     early days of the stadium, temporary seating
                     and equipment storage can be hired for the
                     promotion. Landscaping can also be developed
                     in the long-term plan. There are not the           A completed timber track Wanganui, New Zealand
                     demands on an outdoor cycling facility to be an
                     instant reality. On the other hand, an indoor
                                                                        Timber tracks
                     facility must be funded and complete when the
                     doors open.                                        These tracks are very appealing to racing
                                                                        cyclists as the timber surface produces very
                     Building materials
                                                                        fast racing speeds. The timber profiles of the
                     Three types of cycle track are built outdoors:     prefabricated understructure ensure that the
                                                                        shape of the finished track is true. If the original
                     ●   timber
                                                                        computer-aided design is precise, then the
                     ●   concrete                                       finished track will be perfect.
                     ●   asphalt.                                       However, an outdoor timber track does have
                                                                        distinct disadvantages:
                                                                        ●   A timber track using proven suitable wood
                                                                            will have surface timber of either afzelia
                                                                            from West Africa or merbau from Borneo or
                                                                            the Malaysian peninsula. Afzelia has been
                                                                            used on many tracks and is a very dense
                                                                            timber resistant to moisture absorption.
                                                                            Afzelia has the disadvantage of varying
                                                                            grain lines, which can result in a length of
                                                                            lath containing both long and short grain. In
                                                                            such cases the wood is prone to splitting,
                                                                            with the lath breaking at the short grain.
                                                                            Merbau is of similar weight and density to
                                                                            afzelia. The laths are far more likely to have
                                                                            continuous long grain. Merbau is easier to
                                                                            work with, easier to obtain and less
                                                                            expensive than afzelia.
                                                                        ●   Building a hardwood track is hard work. The
                                                                            wood must be drilled before nailing and the
                                                                            timber laths are difficult to bend and twist to
                     Constructing timber track Taichung, Taiwan             follow the form of the track transitions.

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            Athens Olympic track – will be roofed for the 2004 Games

            ●   The managers of venues with hardwood                   A concrete track will be relatively maintenance-
                timber tracks will find them expensive to              free and should have a lifespan of many years.
                maintain and in constant need of repairs to            Many concrete tracks around the world have
                surface defects. Local authorities                     been in constant use for 50 years or more.
                considering requests to construct outdoor
                                                                       In the past, many building companies have been
                timber tracks would be wise to inspect an
                                                                       reluctant to undertake laying concrete angles
                existing venue that has been in use for five
                                                                       up to 45º in the curves of a 250m track or 38º
                years or more and to obtain annual
                                                                       for a 333.333m track. It is, after all, an unusual
                maintenance costs.
                                                                       contract to be offered.
            ●   Outdoor timber tracks have an outstanding
                appearance when in good condition and                  The concrete surface is constructed by laying
                produce record times, but are not cost-                slabs in a ‘hit and miss’ pattern around the
                effective in the long term.                            shape of the track. A practical slab size is
                                                                       8x8m. The screed cannot be finished from top
            Concrete tracks                                            to bottom of the bay. The curved shape of the
            In Britain, concrete is a common locally sourced           bays demands screeding horizontally. All joints
            building material, and its qualities and uses are          are vertically cut and there are no longitudinal
            stock-in-trade to British civil engineers. It is           production joins. The angle of the track in the
            logical that, given specialist track design advice,        banked curves restricts the concrete mix
            local construction companies employing                     specification to 40mm slump. This mix cannot
            experienced workers can build a cycle track.               be easily pumped. Dumping, vibrating, levelling

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                     1 Compacted and levelled                          2 Low slump concrete

                     3 Slab poured, tamped, vibrated and finished in   4 Horizontal screed and finish
                       one continuous operation

                     5 Alternative bay construction                    6 Surface finished and fence posts positioned

                     Concrete track: Stages of construction

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            and finishing of the 8m-wide bay must be             The task is to illuminate with an even spread
            completed in one pour. To facilitate the trowel      over the 7m-wide surface of the track without
            finishing of the slab, the workers are supported     definite pools of light.
            on a movable cradle across the track width.
                                                                 The materials for the lighting system are readily
            Tolerance on the finished slab is +/- 3mm.
                                                                 available. Masts, lamps and cables can be
            A concrete surface is suitable for cycling but       standard street lighting fittings. The height of
            does absorb rainwater, thus preventing use until     the masts should be about 6m. Cables for the
            some time after the rain has stopped. If funding     lights can be run under the concrete path
            is available, a 7mm topping of an epoxy-resin        around the outer perimeter fence.
            mix containing ver y small a g g rega te is
            recommended. The material is trowelled onto          Asphalt tracks
            the finished concrete. This surface is impervious    Asphalt surfaces are not recommended for
            to water, allowing racing or training to commence    banked tracks of 250m or 333.333m and
            immediately after rain has stopped. The surface      authorities building a new, larger track should
            is also super-fast. Several record-breaking          consider other options.
            tracks in Europe have this surface and the
                                                                 Britain has many asphalt tracks built around a
            Herne Hill track in London is an example.
                                                                 football pitch or athletics track. These very
            The quality and success of the finished track        large, flat tracks of 450 or 500 yards have
            will depend on the standard of the concrete          provided British cyclists with great service for
            works and, in par ticular, the skill of the          generations. It is important that the more valued
            tradespeople doing the final finishing work. The     of these are refurbished and maintained in
            required tolerances are essential for a good         serviceable condition. It is appreciated that not
            track. The building work will require constant       all areas need or wish to build a modern track
            quality control at all stages.                       for national-level competition.
            Where construction budgets are restricted,           Renewing asphalt on a very large, flat track
            project engineers may consider the advantages        does not present difficulties. Continuous rolling
            offered by fibre-reinforced concrete. The savings    of new asphalt with a heavy road roller will –
            in steel reinforcing mesh, transportation and the
            labour content of the preparation present a
            strong argument for this material. The strength
            of the fibre concrete lends itself to the twisting
            shape of the slab in the transitions of a banked
            track. Care must be taken, however, that the
            finished surface is ‘hairless’.
            Lighting
            An oval pattern of masts around the outer
            perimeter is a proven and cost-effective way to
            illuminate the surface of a cycle track. The
            masts should be about 10m apart and, for
            safety reasons, positioned approximately 1m
            away from the track fence. An arm of about
            1.5m in length reaches to just past the track
            fence. Two lamps can be fixed to the end of the
            arm at angles to enhance the spread of light.
            The even spread on the surface is achieved by
            the illumination from one lamp overlapping the       Club cyclists in action on the asphalt Harvey
            light from the lamp on the neighbouring mast.        Hadden Track at Nottingham

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                     providing there is no serious damage to the                   tracks. The effect can never be the same as
                     base foundation – bring the track back to its                 heavy rolling.
                     original condition.
                                                                                   A lack of heavy rolling is probably a major
                     Asphalt is an ideal material for road surfaces                cause of surfaces bulging or splitting. Frost
                     but demands continuous kneading to ensure                     damage is an added hazard with asphalt.
                     flexibility and durability. On a roadway, daily
                                                                                   Where a large track is well used and maintained
                     traffic provides the kneading process. Cycle
                                                                                   and of value to the community, refurbishment is
                     racing tyres, as narrow as 20mm and pumped
                                                                                   a sound idea. However, for those tracks where
                     to 120psi, cannot simulate this effect
                                                                                   the cur ves are banked and unsuccessful
                     Banked cycle tracks are not the ideal                         attempts have already been made to resurface
                     environment for slow, heavy road rollers. On a                the track, it is probably advisable to consider a
                     banking angle of just 15º they would hardly                   concrete surface. If the venue has been in
                     wind up, even rocket assisted, to the centrifugal             place for many years and the basic foundation
                     force necessary to maintain friction and even                 is well settled and compact, there may be no
                     distribution of weight. It is logical that the full           need to demolish the old track. A bed of lean-
                     weight of the machine will gravitate towards the              mix concrete to a reasonable depth can be
                     inside edge of the rollers. Heavy rolling to                  compacted onto the old track, before constructing
                     compact the asphalt is not possible. On some                  the concrete slabs over the lean-mix. The
                     existing tracks, it is probable that the job was              redesign could also develop more suitable
                     done using light rollers or even by teams of                  geometry and the opportunity to reshape the
                     workers pulling rollers up and down the banked                bankings in the curves.

                     The asphalt track at Reading is a valuable asset for the grass roots of the sport

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            Completing the track project

            Track fence

            A track used for the highest standard of
            competition must have a fully enclosed perimeter
            fence 750mm high. A continuous steel safety
            rail on brackets will be fixed 250mm above the
            fence. The total height of 1m is measured from
            the top of the track surface at the fence. This
            measurement will be constant around the full
            circumference of the track. This height is
            considered practical to help prevent a cyclist
            who crashes into the fence from toppling over it.    Concrete safety fence, Cardiff

            On the public side of the fence the concourse
            will be slightly lower than the level of the top
            of the track surface to conform to height
            requirements for a standing person behind a
            barrier. This can be 1100mm but may be higher
            for some local authorities. A well-designed
            stadium would provide terracing to accommodate
            seated spectators. A recommended step for the
            terraces is 500mm and these steps rise as the
            transitions of the cycle track rise. The depth of
            the terrace ‘going’ would be 800–1000mm,
            according to the number of seats planned and
            the type of seating used.
            On a track for regional events, school groups
            and leisure activities, a cheaper alternative is a
            fence clad with tongue and groove timber             Enclosed timber fence and track lines at Herne Hill,
                                                                 London
            boarding on the trackside only, with a capping
            and a supported steel rail.
            On a track with no greater ambition than to
            provide for cycle clubs and local community
            activities, the fence could be a tubular steel
            frame with plastic-covered fine mesh chainlink
            fencing. It is advisable to fabricate a second
            continuous rail at the top of the chainlink fence
            without any obstructions that might injure
            hands or arms. Along the bottom of the fence,
            trackside, there must be a well-designed and
            fitted kickboard to a height of at least 250mm.
            Safety run-off
            Where track surface and the slow run meet at
            the bottom of the track, a curved run-off must
            join the two different angles. The width of this
            strip on a concrete track should be 1m. This         Mesh covered fence at Gosling Stadium, Welwyn
                                                                 Garden City

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                     strip must be poured and finished at the same          or asphalt tracks, storage should be a detail
                     time as the main slab with no horizontal               within the planning. A cost-effective idea for
                     construction joint.                                    outdoor stadiums is the use of steel shipping
                                                                            containers bought from the trade disposal market
                     Safety zone
                                                                            and painted to blend with the background.
                     There should be a sealed zone, minimum 3.5m
                     wide, around the inside of the track. This zone        Car parking
                     is a safe riding area for cyclists, and a path         Local planning authorities have specific car parking
                     where school pupils, or other first-time cyclists,     standards and these vary between authorities.
                     can learn the skills of riding a cycle with fixed
                                                                            A regional facility is likely to require spaces for
                     wheel gearing. If the central arena is grass, this
                                                                            at least 50 cars while a stadium of national
                     buffer safety zone will ensure that use of the
                                                                            importance will need in excess of 100. Parking
                     track is not restricted in wet weather by muddy
                                                                            and turning space for coaches will also be
                     conditions in the central area.
                                                                            required. Consideration should also be given to
                     Perimeter concourse                                    the occasional need for overflow car parking for
                     A sealed path around the top of the track              special events. More details can be found in the
                     perimeter, outside the track fence, should be a        Guidance Note Car Park and Landscape Design
                     minimum of 1.5m wide and follow the contours           (see References section).
                     of the track profile. This path will provide a
                                                                            Track markings
                     walkway for spectators and prevent rainwater
                                                                            UCI regulations for marking tracks used for
                     filtering under the track surface. For a concrete
                     track, the strip is an essential building aid during   international competition
                     the construction of the concrete track slabs.          Track records are only recognised if all UCI
                     Amenities
                                                                            regulations for record attempts are complied
                                                                            with, including those for track markings as detailed
                     Cycling stadiums follow the normal guidelines
                                                                            in Table 1.
                     for sport and leisure facilities. A suggestion is
                     offered here that changing, lockers, showers           Paint: Best quality emulsion paint. Do not use
                     and toilets should be planned in module form. If       oil-based paint.
                     units are designed for up to 10 persons, the
                                                                            Colours: Common sense will prevail on asphalt
                     number of units can reflect the forecast volume
                                                                            or dark grey hardwood tracks. In these cases it
                     of competitors using the stadium. The advantage
                                                                            is suggested that white replaces black, yellow
                     of the modular format is that the number of
                                                                            replaces red and light blue is used instead of
                     units open for use can change to meet male/
                                                                            mid-blue.
                     female needs on each occasion. During training
                     sessions, units that are not required can be           Track area required
                     locked. This imposed discipline reduces cleaning       Figure 1 on page 16 illustrates a typical cross-
                     duties. Two rooms should be planned for                section for a concrete track. Figure 2 on page 17
                     massage and a limited gymnasium would be               shows the shape and the area required for a
                     good for cyclists, and a possible attraction for       typical outdoor concrete track with a circumference
                     non-cyclist users of the facility.                     of 333.333m.
                     Bicycle storage                                        This size track, 3 laps = 1km, is recommended
                     Storage space will be required. If cycles are to       as a good solution to the need for general
                     be left at the stadium by club cyclists, the           cycling activities from beginner to elite level,
                     storage must be secure. If the track is of timber      and provides a central arena area to accommodate
                     construction, space can be allocated under the         a wide variety of sports. This venue would be
                     curves of the track, using ply sheeting to cover       multi-purpose.
                     the underside of the track trusses. For concrete

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                                                                                                         Cycling Sports Facilities

              Track marking               Colour                       Position
              Setting out line                                         The base line used during track construction
              Track run-off zone          Light blue                   Area below setting out line.
                                                                       Outdoors: width 1m
              Data line                   Black                        200mm above the setting out line
              Sprinter line               Red                          900mm above the setting out line
              Stayer line                 Mid-blue                     2500mm above the setting out line
              All                         Black, red and blue          Black, red and blue lines are 50mm wide and
                                                                       painted on the full circumference of the track.
                                                                       The exact distance to measure track lines from
                                                                       the setting out line is:
                                                                       • to the bottom edge of the black line
                                                                       • to the top edge of the red line
                                                                       • to the top edge of the mid-blue line.
              Finish line                 Background: white            7m or the full track width
                                          panel 7mx720mm
             Centre line                  Black                        Width: 40mm
              200m line                   Black                        Width:40mm
                                                                       7m or full width of the track vertical from the
                                                                       200m measurement
              Pursuit lines                                            3.5m vertical from mid-point of the straights on
                                                                       the track axis; two lines
              Distance marks              Black                        10m marks measured along the bottom of the
                                                                       data line:
                                                                       Width: 30mm centred on each 10m mark
                                                                       Length: 200mm (joining the black line to the blue
                                                                       safety run-off zone)
              Distance marks              Black                        5m marks measured along the bottom of the
                                                                       data line:
                                                                       Form: a black square 30x30mm centred on
                                                                       each 5m mark
             Track numbers                Black                        Position: to the right side of each 10m mark line
                                                                       Height: commercially available stencils of
                                                                       180mm or 150mm
            Table 1 UCI regulations for international level track markings

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                     Figure 1 Section through track

                     Herne Hill Stadium, London

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                                                                                            Cycling Sports Facilities

            Concourse circumference     436m
            Track circumference     333.333m
            Track perimeter           373.5m
            Track width                   7m
            Highest angle                 28º
            Lowest angle                 5.5º

            Figure 2 Velodrome cycle track

            The ground area required to build a track only,   A 400m track should only be contemplated
            with a concourse 5m wide around the track but     where there is a requirement for a grass central
            not including seating or amenities, would be:     area for hockey or football.
                                                              Where the need is to refurbish an existing
              Track (m)         Length (m)     Width (m)
                                                              quarter-mile track, consultation should take
              250               116            78             place to adjust the geometry to the dimensions
              333.333           138            97             of a 400m track.

              400               181            104            Author of section on velodromes:
                                                              © Ron Webb – R V Webb Consultants
            Table 2 Track dimensions                          (see Useful Contacts)

             A 250m track would be ideal for dedicated
            cycling use with a reduced central arena area
            capable of accommodating a variety of sports.

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                     Closed road racing circuits

                     Closed road racing circuits serve two main
                     functions, both of which are complementary to
                     the development of international road racing:
                     ●   a means of training by competition in
                         surroundings not affected by other road
                         users – this is particularly important for
                         under-16s whose road racing is confined to
                         closed circuits
                     ●   a form of road racing that will attract the
                         public, thus making it a spectator sport.
                     In many areas, circuits already exist in parks
                     and recreation grounds or could easily be
                     extended to provide a completed circuit. For           A site investigation process should be undertaken
                     new recreation complexes, consideration should         by a specialist company to determine the following:
                     be given at the design stage to the construction
                                                                            ●   presence or otherwise of hazardous
                     of access roads so that these complexes can
                                                                                materials
                     be used for closed road circuits.
                                                                            ●   evidence of insufficient compaction in fill
                     Layout and dimensions                                      materials
                     Small circuits at multi-use sites should be at least   ●   water table level and ability to drain naturally
                     0.5km in circumference. These are suitable for         ●   allowable ground-bearing capacity to enable
                     introducing newcomers to cycling and for basic             design of road construction.
                     training (Stage 1 activities in British Cycling’s
                     Progression Pathway).                                  Road design
                     Closed road circuits of at least 1km circumference     In all probability the circuit will only be used by
                     will be suitable for most local and regional level     cycles, race vehicles, emergency vehicles and
                     activity, although 3–5km circuits are necessary        those vehicles associated with site maintenance.
                     for regional and national competitions. A circuit      Failures in paving layers tend to stem from
                     width of 6–8m is recommended. If the nature of         unplanned use by vehicles that were not
                     the circuit restricts the width, a minimum width       originally intended to be there. Take such use
                     of 5m will be acceptable. The finish area width        into account at the design stage if it cannot be
                     must be 7–8m. Closed road circuits will be used        prevented with physical barriers.
                     for races similar to those on open roads and
                                                                            The best design solution incorporates a standard
                     should therefore simulate this if possible with
                                                                            250x125mm kerb laid on its side to form the
                     hills and bends.
                                                                            road edge. The paved edge should be laid with
                     Site investigation                                     a surface falling towards the verge, assuming
                                                                            the verge is grassed. The inclusion of a positive
                     The opportunity to develop a closed road circuit
                                                                            drainage system such as plastic pipe drains at
                     will often arise as par t of a regeneration
                                                                            the edge of the circuit will assist in dispersing
                     programme, therefore the chosen site may well
                                                                            surface water. This type of approach was used
                     be classed as ‘brownfield’ with formation levels
                                                                            for the construction of the circuits at Eastway
                     consisting of significant measures of landfill
                                                                            and Hillingdon.
                     material. It is essential that the characteristics
                     of the site be investigated to determine suitability   A cheaper solution would exclude the road
                     for use and the optimum construction methods.          kerbs and positive drainage. However, this could

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            lead to roads that deteriorate quickly and need             for the removal of up to 15000m3 of spoil,
            frequent edge maintenance.                                  equal to 750 full lorry loads. In addition to the
                                                                        impact on the neighbourhood of heavy traffic
            If the ground is likely to drain poorly, it will be
                                                                        movements, this can also be a costly factor,
            necessary to consider a verge drainage solution,
                                                                        particularly with the increasing burden of landfill
            and a number are available. In the French drain
                                                                        tax. Where possible, therefore, consideration
            method, a trench fill consisting of single-size
                                                                        should be given to on-site disposal in the form
            shingle/gravel wrapped with a geo-textile will
                                                                        of earth screening bunds; these can also be
            provide a cost-effective solution where the
                                                                        used to form contours for off-road activities. At
            water table permits percolation. Alternatively,
                                                                        Hillingdon, moving earth around the site formed
            proprietary wick drain systems are available
                                                                        the contours of the circuit. However, care needs
            that require minimum excavation.
                                                                        to be taken to ensure proper consolidation and
            Remember that the verge should be firm                      drainage and that bunds are not positioned too
            enough to support narrow tyres. Where gravel                close to the road circuit, as the height of the
            fills are used they should be capped with a                 bund could influence the local water table by
            stable material.                                            creating a pressure head.
            Consideration can also be given to the use of               If additional fill is required, it may be possible to
            porous asphalt paving that will reduce the                  secure permission for controlled tipping. The
            volume of surface water run-off and help to                 contours of the final circuit at Eastway were
            prevent standing water. However, such paving                formed in this way and the charges levied paid
            layers can be costly to lay and care will be                for the road construction.
            needed to ensure that the surface does not
                                                                        The site investigation will highlight the ground-
            become contaminated with pore-sealing dirt,
                                                                        bearing capability of the underlying soils and
            particularly where used in conjunction with off-
                                                                        suggest a suitable sub-base depth. Before
            road competition.
                                                                        commencing the sub-base it is advisable to
            At locations where the circuit will meet other              consider the use of a geo-textile membrane
            types of paving, the edge should be finished                over the excavated surface. As the construction
            with a 150x150mm pre-cast concrete ‘square’                 operation will be ‘linear’, the sub-base will be
            channel. This should be laid to finish flush with           required to accept the load of all delivery
            both paving layers.                                         vehicles and laying equipment. The membrane
                                                                        will therefore help to prevent the sub-base
            Road construction
                                                                        being pumped into the underlying layer during
            A major factor to consider is the initial                   its loading, avoiding contamination of the stone
            excavation. The road in a typical circuit may call          and consequent costly wastage.

            Figure 3 Cross-section through closed circuit cycle track

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          Cycling Sports Facilities

                     The sub-base will lie within 450mm of the              Good practice
                     finished level; this is determined as the maximum
                                                                            Preston Sports Arena – University of Central
                     range of frost penetration. Care should be
                                                                            Lancashire
                     taken, therefore, to ensure that the sub-base
                                                                            The University of Central Lancashire has
                     material is not susceptible to frost damage. This
                                                                            developed a 60-acre site to provide a new, high-
                     can be achieved by choosing a specification
                                                                            quality outdoor multi-sports complex on land
                     for highways clause 803 type 1 granular sub-
                                                                            acquired for the purpose by the university. A
                     base. With modern screening techniques this
                                                                            central feature of the development is a 1.7kmx6m
                     specification is increasingly being met from
                                                                            wide, tarmac-surfaced closed road circuit that
                     recycled cr ushed concrete, a cheaper and
                                                                            runs around the perimeter of the facilities.
                     more sustainable solution, par ticularly if
                                                                            Other facilities include an athletics track, hard
                     the ‘brownfield’ site of fers the possibility
                                                                            court sports area, grass pitches and a synthetic
                     of obtaining the material locally, perhaps
                                                                            turf pitch. The complex has been built at a cost
                     even from the site itself.
                                                                            of £12,272,081 with the aid of an award of
                     For low traffic use the sub-base depth will            £7,976,853 from the Sport England Lottery
                     normally be a minimum of 200mm, unless the             Fund. All the facilities are available for joint use
                     site investigation report identifies underlying        by community and university sports organisations.
                     weak ground, in which case the depth should
                                                                            The provision of an off-road cycle track was
                     be increased.
                                                                            recognised in the Cycling Development Plan
                     The choice of paving material should take into         produced jointly by all key partners. Cycling is a
                     consideration factors such as rolling resistance,      well-established road-based sport in the area
                     ‘fall-friendly’ texture and potential to skid.         and the lack of an off-road facility that would
                     Economy will also be a major factor but this           provide a safe environment for young people
                     should not be at the expense of performance. It        was identified as a priority. The facility is
                     is invariably much easier to incorporate the           immediately adjacent to the canal towpath and
                     capital costs of a durable material into a project     links to the future Sustrans cycle route. The
                     than it is to fund the repair or replacement costs     facility also links to a series of cycle ways
                     at a later date.                                       developed by Preston Borough Council through
                     A typical specification for the circuit-paving layer   the town.
                     with nominal vehicle use can be identified as:         This project demonstrates that it is relatively
                     Road base: dense base macadam to BS4987                easy to incorporate a cycle facility into a multi-
                     using 40mm thick coarse aggregate, average             sports facility. Careful planning and programming
                     thickness 75mm.                                        are essential when planning a multi-sports
                                                                            facility to ensure minimal conflicts of interest
                     Base course: dense base macadam to BS 4987             between different sports.
                     using 28mm thick coarse aggregate, average
                     thickness 50mm.
                     Wearing course: hot rolled asphalt (HRA)
                     to BS 594 with 55% of l4mm thick coarse
                     aggregate; average thickness 30mm; overall
                     thickness 155mm.
                     Where surface markings are incorporated,
                     consideration should be given to the potential
                     for slip in wet conditions. The recommendation
                     is to use a low-build chlorinated rubber marking
                     paint rather than thermoplastic markings.

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                                                                         Cycling Sports Facilities

               Cycling circuit

            Figure 4 Closed road cycle circuit at Preston Sports Arena

            Aerial view of Preston Sports Arena

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                     BMX race tracks                                     Track design
                                                                         Starting area
                     BMX race tracks must adhere to the minimum
                     requirements of British Cycling and the Union       The starting area is one of the main focal points
                     Cycliste Internationale and be of a high enough     on a track. A paddock area should be sited
                     standard to host a regional event. Such race        behind the start hill to allow racers to come on
                     tracks have a separate start and finish and are     to the star t gate in an efficient and orderly
                     constructed with various corners and jumps          manner. It must be large enough to allow
                     that are designed to be challenging while taking    competitors to line up before their race. The
                     account of riders’ safety.                          access to the start hill should incorporate a
                                                                         shallow incline so that riders can push their
                     The star t hill, as the name suggests, is a         bikes up while waiting to race. Access to the
                     downhill gradient with a start gate at the top.     gate should allow riders to line up behind those
                     The riders start with their front wheels pressed    already on the pad and should be wide enough
                     against the start gate, which is hinged and         to give access to the pad and gate. The material
                     drops forward when released to start the race.      for this part of the track should be the same as
                     The average BMX track will be 300–400m in           the surface of the track to stop foreign material
                     length with a hard, smooth surface. The track       from being impacted into the race surface from
                     design will include obstacles constructed at        riders’ feet or tyres.
                     strategic points to add excitement and an extra
                     skill factor to the racing. There are also banked   A track with a tarmac start hill requires a sub-
                     turns (berms) to help riders maintain maximum       base and a top surface dressing of tarmac.
                     speed during a race                                 Concrete can be used for the surface but
                                                                         experience has shown that over such a large
                                                                         and sloping area the settlement of the hill will
                                                                         cause cracking and in some cases require
                                                                         complete replacement within a few years.
                                                                         Tar mac on the other hand will, to some
                                                                         degree, move with the settlement and reduce
                                                                         maintenance costs.
                                                                         The height of the hill should be at least 2m,
                                                                         preferably higher. This will be the highest part of
                                                                         the track and its visual impact on local residents
                                                                         must be considered. From the start gate the hill
                                                                         should extend for 12–13m before reaching
                                                                         nominal track level, with a smooth transition
                                                                         between the two. This can be achieved by
                                                                         laying the tarmac below track level with the final
                                                                         surface laid up to the tarmac. The pad to which
                                                                         the gate and release mechanisms are attached
                                                                         should be made from reinforced concrete to
                                                                         ensure solid and permanent fixings. The start
                                                                         pad must be at least 10m wide and 2.5m long. It
                                                                         should have a rough ribbed finish to provide grip
                                                                         for the competitors’ tyres (scoring across the
                                                                         surface will provide extra grip) and should be
                                                                         set at an angle of at least 20º to the horizontal.
                                                                         The start pad should be at least as steep as the
                                                                         starting slope, preferably 5–10º steeper.

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                                                                    Cycling Sports Facilities

            Figure 5 Details of start grid in BMX circuit
                                                            The height of an obstacle
                                                            is dependent on the speed
                                                            of the riders – small in
                                                            slow sections, larger in
                                                            faster sections.

                                                            Obstacles on slower parts
                                                            of the track should be
                                                            steeper than those on
                                                            faster sections.

                                                            The transition of the
                                                            slopes is very important.
                                                            A gradual slope from the
                                                            ground getting steeper
                                                            towards the top is required.

                                                            The total length of an
                                                            obstacle is dependent on
                                                            the speed of the riders
                                                            and the location on the
                                                            track.

            Figure 6 Details of mounds in BMX circuit

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                     The gate should be constructed of a good             Jumps
                     strong tube or box steel, but can be constructed     One of the first jumps or obstacles on the track
                     in light alloy if available. It must be a minimum    will often be a large set of doubles. The riders
                     of 8m wide and 50cm high and perpendicular to        will approach these at speed and hence the
                     the slope of the pad when in its upright position.   obstacle should be made wide (approximately
                     The gate release system should be made to fit        l0m from front to rear edge) with a shallow
                     the gate and, if manual, enable release of the       centre, hollow to allow younger riders to ride
                     gate with hand or foot pressure. It is preferable    through it. It is important that the second peak
                     to have an electrical or pneumatically controlled    is slightly higher than the first as this enables
                     start gate, and essential for a national event.      those riders who are jumping the obstacle to
                                                                          judge the distance as they approach it.
                     To prevent unsupervised children from trying to
                     lift the start gate, as a minimum precaution it      The landing area should not be too shallow as
                     should be padlocked.                                 riders will use the angle to control their landing;
                                                                          if it is too shallow they will tend to land very
                     In competition use, the starting positions should    heavily and lose control. Shallow landing areas
                     be clearly marked 1–8 on the gate. If automatic      also stop less experienced riders jumping down
                     gates are used for competition, appropriately        and landing on the front wheel only, which can
                     coloured lights must be provided and positioned      easily cause loss of control.
                     in such a way as to be clearly visible to all
                     riders, without disadvantage in the ‘pedals          Table top is another obstacle that should be
                     ready’ position. If using an automatic gate there    l0m wide and 2–2.5m high to give younger
                     must be provision for a mechanical operation in      riders extra speed as they come down from it
                     case of failure.                                     into the turn; it is also intended to slow older
                                                                          riders as they will tend to jump it. The same
                     Start or first straight                              comments about landing slopes apply. A flat
                     The start or first straight should be a minimum      table top should be about 4m wide and 1m high
                     40m long and start with a width of l0m, tapering     so that the more skilled riders will have enough
                     down to 6m as it enters the first berm. As           speed to jump the obstacle with a flat trajectory
                     the first straight is usually where the most         or to ‘manual’ the jump, that is, ride it on the
                     spectacular obstacles are sited, a generous          back wheel only, while still applying pedal power.
                     width is recommended.
                                                                          A speed jump should be about 1m high, down
                                                                          to 0.4m high for the small types. It usually has a
                                                                          reasonably shallow rear edge and a steep front
                                                                          so that speed gets riders over it, and they can
                                                                          gain speed by using the down slope as a mini
                                                                          start hill.
                                                                          Step-up doubles or step-up table tops can
                                                                          also be high (2–2.5m) with an overall length of
                                                                          8–l0m, which will be controlled by the speed of
                                                                          riders entering the obstacle and its position in
                                                                          relation to berms and other jumps. The rear
                                                                          face of the jump should be reasonably steep to
                                                                          enhance the skill level of riders who are
                                                                          jumping and to maximise the speed for younger
                                                                          riders through to the next obstacle. Averagely
                                                                          skilled riders in the older classes should be able
                                                                          to jump from the front slope onto the top but not
                                                                          over the whole jump; the best riders will clear
                                                                          the jump.

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                                                                                             Cycling Sports Facilities

            Figure 7 Typical BMX circuit

            A combination of two doubles can be very         2&2, that is, jump the first double into the centre
            exciting to watch and to ride. Each element      hollow then jump out and over the second double.
            could be about 6m long with shallow centre
                                                             Often the most challenging obstacle is a
            hollows but the transition hollow between the
                                                             combination or sequence of six jumps, each
            two sets should be deep and longer. Younger/
                                                             about 3m long and 1m high with centre hollows
            slower riders will be able to ride through the
                                                             between the jumps, which should be 0.75m
            combination and older/faster riders will do a

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          Cycling Sports Facilities

                     Figure 8 Elements of a BMX circuit

                     deep. Younger/slower riders will be able to ride       without being stuck in mid-air. A distance of
                     through the combination and older/faster riders        about 2m should be satisfactory depending on
                     will do various combinations of 2&2&2 or ride          the angles of the slopes and the shape of the
                     two, jump two and so on. The skill of the rider will   jumps. The slopes need not be severe and the
                     dictate their preferred route through the obstacle.    jumps should have a well-rounded profile. A
                                                                            tandem roller such as the Bomag 80 is a good
                     The space between jumps should allow a
                                                                            guide to shape as it should be possible to take the
                     normal full-size BMX bike to fully enter and exit
                                                                            roller through the full sequence without grounding.

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                                                                                                   Cycling Sports Facilities

            A small set of doubles, 4–6m wide and 1m               A common mistake is to build jumps too small
            high with a shallow centre hollow, gives younger       as this entices younger, less experienced riders
            riders enough speed to ride the obstacle and           to try jumping them – often when unsupervised
            use the down slope to give them speed into the         – while older riders will over-jump the obstacle
            next berm or jump, while older riders will be          and risk bike damage or personal injury by not
            jumping them.                                          having a proper landing slope.
            Another obstacle is the triple, which will be          First berm
            12–l5m wide and l.5m high at its third jump.           The height of the first berm (bend) should be
            Younger riders will ride it without difficulty while   2.5–3m at its outer edge with a steep internal
            older riders will have the option of jumping parts     slope to help riders maintain the speed at which
            or all of it or just riding through.                   they enter the corner and to ensure a safe exit.
            The height of an obstacle is dependent on the          Any trees around this area should not interfere
            speed of riders and the approach line to the           with the track at any point and should be at
            jump. Slower sections of the track require lower       least 3m from the track edge.
            jumps than the faster sections but, where the
                                                                   The minimum width of the first berm should be
            riders are exiting a fast berm, any jump close to
                                                                   6m from the inside of the track to its top and
            the berm will generally be low. The transition of
                                                                   allowance should be made for a smoother
            the slopes is also very important and can only
                                                                   transition from the l0m wide start straight to the
            be judged by experience or trial and error. A
                                                                   rest of the track. The first straight is long and
            gradual slope from the ground, getting steeper
                                                                   will be fast – hence plenty of room is needed at
            towards the top of the jump, is required and
                                                                   the first berm for all riders to have an equal
            this relationship varies from jump to jump
                                                                   chance of negotiating it safely.
            depending on height, speed and location to other
            jumps. The length of jumps is also dependent           Unlike in road construction, more material and
            on the speed of riders and their relationship to       height is needed on the exit of the berm to
            the berms and other jumps.                             ensure transition to continue on the track. This

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          Cycling Sports Facilities

                     maintains more momentum during racing, and            When using the track for competition, the finish
                     allows alternative race lines for overtaking and      line must be clearly marked on the track to
                     prevents collisions.                                  indicate the finish point. Finish line banners
                                                                           must also be high enough not to interfere with
                     Other berms
                                                                           any rider or finish line official and vertical
                     A berm’s height will vary depending on its
                                                                           supports must be placed back a minimum of 2m
                     shape and overall width. A tight turn might need
                                                                           from the track edge and padded if necessary.
                     to be 2–2.5m high at its outer edge with a fairly
                     steep internal slope to maintain speed into the       Track construction
                     corner and onto the next straight, while a wide
                     open turn can often require much less height.         Grass and good-quality topsoil should be
                                                                           removed. Topsoil can be used later on the
                     The minimum width of a berm should be 5m              backs of berms and sides of obstacles (areas not
                     (6m for UCI events) from the inside of the track      surfaced) to provide support to the structures
                     to its top to ensure adequate race surface.           and to establish grass, which enhances the
                     When the berm is not in use it may reduce             facility’s final appearance.
                     maintenance costs and be aesthetically pleasing
                     to allow grass to grow on the inside edge. A          The importation of clean material – no chemicals,
                     good guide is to put most of the height in the        glass, wood or rubbish – is required to build
                     last third of the berm and then add to it if          up the main parts of the track (berms and
                     required. The objective is a smooth transition        obstacles). For the construction of the larger
                     from the entry straight to the rest of the track.     obstacles such as the start hill, berms and
                                                                           larger jumps, crushed materials (no larger than
                     Last straight
                                                                           100mm) taken from excavations of roads,
                     Normally the last straight is fairly technical with   building sites and so on are suitable as they are
                     combinations of carefully spaced jumps.
                                                                           stable and will not spread or change shape
                     Finish area                                           during settlement. This material should be
                     An area should be provided beyond the finish          covered with spoil to a depth of at least 150mm
                     line for riders completing the course to slow         to prevent it from coming to the surface. The best
                     down safely. This area should be fenced off to        spoil is clay based as it is stable and remains so
                     protect spectators. Allowance should be made          during and after construction. This spoil can
                     for up to five officials to stand at either side of   also be used to make the smaller obstacles.
                     the track.
                                                                           On undulating or sloping land it might be possible
                                                                           to reduce the quantity of material imported
                                                                           by using the natural lie of the land and by the
                                                                           repositioning of on-site materials.
                                                                           Once the basic shape of the track is complete
                                                                           a sub-base must be added. Depending on the
                                                                           soil conditions the following recommendations
                                                                           are made.

                                                                           Soil condition
                                                                           Clay, sandy or light soil
                                                                           The sub-base, approximately 20mm down,
                                                                           should be laid and compacted to a finished
                                                                           depth of approximately 100mm over the entire
                                                                           track. Following this the complete track area
                                                                           should be surfaced with a fine soft limestone

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Cycling   06:10:03      18:01   Page 29

                                                                                                    Cycling Sports Facilities

            dust or dolomite (3mm to dust) to a compacted
            depth of 20mm. With any clay-based soil there
            is always ‘clay heave’ during adverse weather
            conditions, so care should be taken that areas
            will not become water logged causing the
            surfacing to ‘mud up’. If it is clear that the area
            will remain wet, the following procedure should
            be followed:
            ●   Remove all affected materials (for reuse).
            ●   Fix a terrain membrane to the wet area.
            ●   Fill with hardcore or similar free-draining
                stable material and compact.
                                                                  Track surfacing materials
            ●   Follow normal track construction.
                                                                  The following totals are a guide to the required
            Stone/shale                                           materials for the basic track stated above:
            This ground condition requires less sub-base
                                                                  ●   sub-base material      200 tonnes
            material as the ground is more stable and less
            likely to ‘mud up’. Lay 10mm to dust sub-base to      ●   top surface material 40 tonnes.
            a compacted depth of 30mm. The area is then           It is extremely important to achieve an aesthetically
            surfaced as with the other soil types.                pleasing appearance for the track and surrounding
                                                                  areas in order to preserve the standards and
            Material requirements
                                                                  the image of the sport of BMX racing.
            The following information is for general guidance
            only and types of material and detailed estimates     Concrete start hill
            of quantities must be based on your final             For a track with a concrete ramp or start hill,
            track design, preferably in conjunction with an       the requirement would be for the use of ready-
            experienced track designer/builder. British Cycling   mixed concrete laid to a depth of 100mm and
            can provide contact details of recognised BMX         ‘tamped’ to secure a fine ribbed surface (not
            track builders.                                       smooth) to the length and width of the start
                                                                  hill – 10x12m.
            Spoil
                                                                  The quantity of concrete required for the start
            While tracks can vary in length, the average
                                                                  hill would be approximately 10–12m 3 with a
            track is approximately 350–400m long by 6m
                                                                  4:2:1 mix using 10mm stone. An air-entraining
            wide. Tracks can also vary in the number of
                                                                  agent is recommended in the concrete mix to
            turns and jumps they have. Assuming a basic
                                                                  increase its life expectancy in frosty conditions.
            track layout with four turns and six jumping
                                                                  Suitable joints running longitudinally are
            sections, the following approximate totals of         recommended for expansion.
            spoil would be required:
                                                                  Tarmac start hill
            ●   start hill      250–300 tonnes
                                                                  A track with a tarmac start hill would require a
            ●   turns           250–300 tonnes                    sub-base and a top surface dressing of tarmac,
            ●   jumps           150 tonnes.                       as follows:

            These totals are dependent on the track design        ●   sub-base of 20mm base coat laid to a
            and site location, but are a basic guide for spoil        compacted depth of 75mm (approximately
            importation. The larger the track and the more            7 tonnes)
            jumps or special sections used, the greater the       ●   top surface 6mm topcoat laid to a compacted
            requirements for spoil.                                   depth of 25mm (approximately 4 tonnes).

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