Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS

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Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Canterbury Works headhouse
and compound
Design engagement – November 2020
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
The HS2 route between Euston and West Ruislip
 West Ruislip Portal

        

     South Ruislip                                                                                                  Adelaide Road                Euston Cavern
      headhouse                                                                                                      headhouse                    headhouse

                                                                                                                                                  Euston Portal
                                                                                                Canterbury Works                                   headhouse
                     Mandeville Road                                                               headhouse
                       headhouse                                                                                                              Granby Terrace Bridge
                                                                                                                                                   headhouse
                                                                                Victoria Road
                                                                                crossover box
                                       Green Park Way
                                         headhouse
                                                                                                                                      
                                                         Westgate
                                                                                            
                                                        headhouse                                                                   Euston
                                                                                     Old Oak Common                                 station
                                                                                          station

   The information on the following slides is presented to show you the design for                Skanska Costain STRABAG Joint Venture (SCSJV)
   the Canterbury Works headhouse and compound.                                                   is our Main Works Civils Contractor between
                                                                                                  Euston and West Ruislip (see map above). They
   We are also asking for your feedback to help shape our final design of the                     are responsible for building the HS2 ventilation
   headhouse and compound. Your comments will be considered in the next stage                     shafts, headhouses, tunnels and other
   of review, which will take place within the next couple of months.                             structures in London.
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Location
The Canterbury Works site is located in South Kilburn, behind Canterbury Road and
Canterbury Terrace and next to the existing railway tracks.

                                                                                        View along Canterbury Terrace
                                                                                    1

                                                   St Mary’s Catholic
                                                    Primary School                      View of St Mary’s Catholic Primary School
                                                                                    2
                                                                        2

                                             Canterbury
                                             House

                                                   Former Pub

     Site boundary
                                  1                                                     View of Canterbury House from Canterbury Road
     School                                                                         3
                                         3
     Residential properties
     overlooking the site
     Locally Listed Buildings

     Site access / exit points
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Wider site context

                     Canterbury
                     Works site
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Overview of a vent shaft and headhouse
                                                                                                    The headhouse will be
The vent shaft and                                                                                  above ground
headhouse are key
components in any
rail infrastructure
What is a vent shaft?
A vent shaft, or ventilation
shaft is a vertical opening that
connects the tunnels to the
surface and open air. It uses
fans situated in the fan house
to regulate air quality and
temperature in the tunnels,
provides access for emergency
services and allows smoke to
be extracted in the event of a
fire.

What is a headhouse?                                                                                                        The ventilation
The headhouse is the building                                                                                               shaft and running
                                                                                                                            tunnels will be
on top of the vent shaft which
                                                                                                                            below ground
contains the fire control and
                                   When will the fans operate?
ventilation systems for the
                                   The fans will operate when extra ventilation is needed to the HS2 tunnels, during
railway tunnels below. The
                                   maintenance and during an emergency. You should not hear the fans running above
headhouse will include a fan
                                   the normal noise of the local area. However, you might notice the fans running during
room.
                                   an emergency as they will need to run at a greater rate to provide ventilation and
                                   extract smoke in the event of a fire.
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Previous design
Scheme Design characteristics
• Single volume ventilation stack with large blank wall and screen
• Long auto-transformer station (ATS) compound with brick
  screening wall
• Headhouse embedded into landscape
• Green roofs

                                                                     1

 1                                      ATS
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Current design
Revised design characteristics from previous design
• Smaller and articulated ventilation exhausts reducing visual impact
• Smaller auto-transformer station building to reduce visual impact
• Small increase in two-storey building
• Curved feature wall adding visual interest to view from train
• Headhouse embedded into landscape
• Further development of plans for green roofs
• Boundary treatments to be confirmed
                                                                        1

                                     Dark grey brick

                                          Auto –transformer station
  1 Headhouse section viewpoint
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Headhouse appearance
                                                                                                       Planned materials
                                                                                                       The material pallet has
                                                                                                       been chosen
                                                                                                       according to the
                                                                                                       environment, moving
                                                                                                       from brick, through
                                                       5. GREEN ROOF
                                                       Intensive Green Roof with deep growing
                                                                                                       metal towards wood
                                                       substrate and biodiverse planting.              as we move between
                                                                                                       rural and urban
           2. TIMBER                                                                                   locations.
           Accoya or similar modified softwood
           naturally weathered to silver grey colour

                                                                              4. STAINLESS STEEL
                                                                              Kick plates, handles and special
                                                                              panels in brushed finish

1. BRICK                                                   3. METAL
Engineering brick for walls, retaining wall                Steel cladding panels, doors and louver panels,
and paviours in dark grey or similar                       polyester powder coated dark grey
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Visualisations of the headhouse

                          1. Low view of the headhouse from St Mary’s School

                         1.

                              2.

*Landscape elements are shown indicatively
please refer to landscape drawings for proposals

                                                   2. Low view of the headhouse from Canterbury House
Canterbury Works headhouse and compound - Design engagement - November 2020 - Amazon AWS
Visualisations of the headhouse

                                                3. Low view of the headhouse from railway

                                                          *Landscape elements are shown
                                                          indicatively please refer to landscape
                                                          drawings for proposals

 4. Raised view of the headhouse from railway
Visualisations of the headhouse
                               5.
    6.

 *Landscape elements are shown indicatively
 please refer to landscape drawings for proposals

                                                          5. Raised view of the headhouse from St Mary’s School

6. Raised view of the headhouse from Canterbury Terrace
Visualisations of the headhouse

*Landscape elements are shown
indicatively please refer to
landscape drawings for proposals   7. View of the headhouse from the south east of Canterbury Terrace
External lighting
Here you can see our future lighting plans

                    Key
                           Headhouse Access Point

                    Lighting Zones
                                 We will be illuminating various zones
                                 throughout the site with a mixture of
                                 lighting fixtures. When the site is
                                 unoccupied these lights will emit a low
                                 dim. This will increase in the following
                                 situations:
                                 - emergencies, when switched on
                                     locally/remotely,
                                 - when vehicles are manoeuvring
                                 - upon gate opening
                                 - when intrusion is detected to aid
                                     enhanced CCTV surveillance.
Examples of wall wash feature lighting
Local materials and colours
Photographic survey of materials and colours in the local area

                                                                 Principle building materials
                                                                 Brick / rendered brick
                                                                 Metal cladding

                                                                 Principle paving materials
                                                                 Concrete slab / block paving
                                                                 Concrete / granite kerbs

                                                                 Principle boundary treatments
                                                                 Brick walls
                                                                 Metal fencing

                                                                 Principle vegetation types
                                                                 Street trees
                                                                 Ornamental / amenity planting
Landscape masterplan
Here you can see the different areas of our future landscaping plans

                                                                                2.8m high security wall / fence

                                                                                Deep substrate green roof

                                  Tarmac                                        Trees and scrub habitat planting

                               Access gate
                                                                                Grassland habitat planting

                         Climber planting                                       Biodiverse green roof

                                                                                Brick pavers
                      Feature shrub planting
                                                                                 Auto-transformer station
            Concrete block / slab paving

                                                                                 Scrub habitat planting
                    2.8m high security wall

                                                                                 Feature shrub planting

                                                                                 Access gate

   Trees and scrub habitat planting   Grassland habitat planting   Green roof
Landscape sections
Here you can see our future landscaping plans from different viewpoints

                                                                Semi-mature
                                                                     tree
 2.8m high                                             2.8m high
                     Security            Biodiverse                                 2.8m high                              Biodiverse green   Semi-mature
security wall/                                        security wall/                                  Deep substrate
                   fence to ATS          green roof                               security fence                                 roof            tree
   fence                                                 fence                                          green roof

                                                                                                                                                      2.8m high
                                                                                                                                                     security wall/
                                                                                                                                                        fence

                                                               Grassland
         Hardstanding                                                                          Path                                           Path
                        ATS              Headhouse             planting                                                Headhouse

  Feature                         Path                  Path           Scrub
                                                                       Planting         Feature                                                   Scrub
  planting
                                                                                        planting                                                  Planting
  Section A-AA is a section viewpoint from Canterbury House                       Section B-BB is a section viewpoint from St Mary’s School
Security boundaries
Here you can see our plans for security boundaries and fencing
                                                                                    Options for site boundary

                                                                                              Brick wall 2.8m                                       Brick wall 2.8m
                                                                                              overall height                                        overall height
                               Access to HS2
                                Compound
                                                                      Maintenance
    Shared access with                                                access gate
   Network Rail to/from
       Albert Road

Key:
         Brick wall 2.8m
         overall height                                                                  Current proposal:                      Alternative proposal:
                                                                                         Brick boundary wall                    Combination of brick wall and vertical rails
         Brick wall – Design to
         tie in with streetscape

         Brick wall – Design to
         meet NR requirements             Access to HS2
                                            Compound
         Metal fence – HS2 standard
         2.8m overall height

         Metal vertical railing fence
         2.8m overall height                     Access gate to HS2
                                                 compound to/from
        Metal vertical railing fence               Canterbury Road                  Security fence                           Existing gate by the      Vertical metal railing
                                                                                                       Security Gate -
        1.4m overall height                                                                            visual permeability   Canterbury House
Planting palette
Here you can see our plans for tree planting

                                               Acer campestre            Carpinus betulus   Betula pendula
                                               ‘Streetwise’              Common Hornbeam    Silver Birch
                                               Field Maple Streetwise’

                                               Coryllus avellana         Ilex aquifolium    Sorbus aria
                                               Hazel                     Holly              Whitebeam
St Mary’s School – Learning landscapes
                        SCSJV will be engaging with St Mary’s School to
                        discuss possible landscaping opportunities for
                        the ‘’pocket park’’ area of the site. Some of the
                        topics to be discussed are as follows:

                        Future proposal
                        •   Sensory garden – edible species, aromatic
                            herbs, contrasts, planting with texture         The pocket park is
                                                                            the purple zone on
                        •   Educational green wall – improvements to
                                                                            the diagram
                            air pollution and potential to learn about
                            planting
                        •   Maximising biodiversity – species to
                            encourage wildlife
                        •   Ecological features for invertebrates
                        •   Play opportunities
                        •   Sustainable drainage

                        Construction Phase
                        •  Integration of art into the hoarding design
                        •  Green wall to reduce air pollution
                        •  Construction views through the hoarding
                        •  Interactive opportunities for play
We would like to hear from you

 The materials proposed in our current scheme design
for the Canterbury Works headhouse are timber, steel,
    concrete and brickwork. We are planning to use        • Do you like the materials proposed for the headhouse?
  similar materials at all headhouses between Euston      • Do you think the materials will blend in with the wider area?
 and West Ruislip but the combination of materials will
           vary depending on the local area.

Our future landscaping plan for the Canterbury Works
     site considers local ecological and vegetation
  requirements, whilst blending into the current live
 railway. The current landscape design also includes      • Do you like the landscaping plans for this site?
block/slab paving, tree planting, scrub and grassland
     habitat planting and a green roof topping the
                      headhouse.
We would like to hear from you

                                                        • Do you prefer the following:
  We are proposing to install 2.8 metre high brick
                                                          • 2.8 solid brick boundary wall or
boundary wall to the back of Canterbury House and
    Canterbury Terrace residential buildings.             • A combination of 1.2 metre high brick boundary wall with railing
                                                            to total height of 2.8 metres

                                                        • Do you like our plans for sensory gardens and tree planting next to
We are proposing to install a sensory garden and tree
                                                          St Mary’s Catholic Primary School?
 planting area next to the boundary with St Mary’s      • Would you like this area to include any of the following: insect hotel,
             Catholic Primary School.
                                                          education green wall, opportunities for play, susttaibnle drainage
                                                          feature?
Works planned at Canterbury Works site
SCSJV started works to set up      Planned works                                              Planned dates for works*
the Canterbury Works site in
August 2020.
                                   Changes to existing worksite fencing, gates and security   Autumn / winter 2020
Our ongoing works to set up the
site and future works to build     Works to remove foundations from previous buildings        Autumn 2020
the ventilation shaft and
headhouse are shown in the
                                   Clearance of vegetation inside site boundary               Winter 2020
table to the right.

*The dates for these works may     Installation of working platforms                          Winter 2020
change. We’ll provide updates at
HS2inKilburn-Northolt.co.uk        Works to strengthen existing retaining wall                Winter 2020

                                   Ongoing utility surveys in your area                       Autumn 2020

                                   Start excavation to build ventilation shaft                From spring 2021

                                   Start works to build the headhouse                         From spring 2022
Our lorry routes
Here you can see the lorry routes and site access points for the Canterbury Works site

                                                            Canterbury      Key
                                              Site          Works site          Worksite access locations
                                              entry
                                                                            --- Lorry route (Local
                                                                            authority roads)
                                                                            --- Lorry routes (Transport
                                                                            for London Road Network)
                                                  Site
                                    Kilburn       exit   Carlton    Maida                                               Canterbury
                                    Lane                 Vale       Vale                                                Works site

                                                                                                   A5
                                       Ladbroke Road

                      Barlby Road
                                                A40
                 Wood Lane

    Our lorry routes
    Our lorry routes have been agreed with Brent Council. We will use the most suitable routes between our worksite and the Transport for London Road
    Network (TLRN). You can find out more at HS2inKilburn-Northolt.co.uk

    Construction traffic
    Construction of the vent shaft and headhouse will have varied periods of construction activity. During phases of high activity on site, such as piling,
    excavation and construction of the shaft, there will be a corresponding increase in heavy goods vehicle (HGV) movements. There will also be periods
    during construction where the need for HGV movements will be lower.
How to find out more and have your say

Attend our online information event                      How to have your say

Due to the Covid-19 pandemic we are not currently        Please provide us with your feedback by 20 November
able to hold face-to-face public events.                 2020. You can do this by:
                                                         • Completing our survey at hs2inkilburn-Northolt.co.uk
We are holding online information events on 10 and       • Emailing hs2enquiries@hs2.org.uk
12 November to share information about the design        • Phoning the HS2 Helpdesk on 08081 434 434
of the Canterbury Works headhouse and compound.          • Using our minicom service on 08081 456 472
You will be able to ask questions during these events.
                                                         Unfortunately due to the current global pandemic we are
For more information and to find out how to join         unable to process responses received by post.
these meetings visit hs2inkilburn-Northolt.co.uk
Next steps

                                      We will provide
     We will consider the        information and hold an       We will request for         We will keep the local
  comments and feedback          event to let you how the   approval of the planning     community updated about
   received to see what can     comments and feedback       application for the design      construction at the
 included in our final design   have been included in our      from Brent Council          Canterbury Works site
                                       final design
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