Post on 18-Dec-2021
September 2011
POTENTIAL WEST BROMPTON STATION ENHANCEMENTS STAGE C REPORT - PRIVATE AND CONFIDENTIAL DRAFT FOR DISCUSSION
Originated by:
Neil Baker
Associate
Aedas Architects, 5-8 Hardwick Street, London, EC1R 4RG
Authorised by:
Tim Narey
Divisional Director
Aedas Architects, 5-8 Hardwick Street, London, EC1R 4RG
Document Number 002
Contribution to the document / Name Aedas Architects Ltd
Revision History Second Draft Issue
Document Title West Brompton Station Enhancement Study
Profession Architect
Date 10/09/2011
Revision 1
Location West Brompton Station
Executive Summary
CapCo has appointed Aedas to undertake a study of potential
enhancement opportunities at West Brompton station to RIBA
Stage C. The station is an important hub on the Wimbledon
branch of the District Line and the Overground West London Line
(WLL), serving Earls Court Exhibition Centre, as well as residents
and businesses in the surrounding area.
It is anticipated that with the redevelopment of the Earls Court
site there will be growth in usage of the station, and that
improvements may be considered to ensure a satisfactory level of
service for passengers leaving and arriving.
A dynamic passenger modelling assessment, carried out by
Halcrow, has identi#ed areas of the station that would bene#t
from capacity enhancement under current conditions, through
increasing the number of gates at the ticket hall, and the
widening of stairs and passageways.
Objectives
The objectives of this study are threefold:
1. To understand the potential to increase station capacity
relevant to passenger growth forecasts and assessment of the
proposed Earls Court Development ;
2. T o understand the potential for the provision of full step free
access between platforms and the ticket hall;
3. To understand the provision for improvements to the station’s
appearance through general refurbishment of the entrance and
ticket hall.
Each of the above objectives are to be considered while taking
into account the constraints associated with the station's Listed
Building status.
Over the course of the four week study, Aedas has reviewed the
existing record information for West Brompton station, together
with the dynamic modelling assessment, so as to develop
potential outline station enhancement options that meet the
above objectives.
Aedas has met with CapCo on to discuss the enhancement
options and to determine a preferred solution for the purpose of
presentation to consultees. Arup has been consulted with
regarding the structural feasibility of preferred option, and has
o$ered recommendations that have been recorded in this report.
Next Steps
The preferred station enhancement option developed in this
report represents a potential outline design based upon the
current information available. It is considered that the works to
construct the proposal can be carried out in a relatively short
timescale, subsequent to detailed design and approval of
proposals from all relevant parties, including English Heritage.
Dimensional information has been taken from historic record
drawings and localised site measurements. It is proposed that a
full topographic survey be carried out in the next stage of the
design to con#rm site dimensions and de-risk the programme of
works.
The record drawings and visual surveys have revealed that there
are no signi#cant services that will require diversion as a conse-
quence of the works. To con#rm this assumption it is proposed
that a services survey also be carried out in vicinity of the works
proposed within the ticket o%ce and historic train shed to the
rear of the ticket hall.
During the next stage of the design there are a number of
departments within TfL, London Underground and Network Rail
that it is proposed will be consulted with for approval of opera-
tional and technical aspects of the proposal.
It is also recommended that further consultation is undertaken
with Transport for London Equality and Inclusion to gain
assurance that the proposals are in accordance with current
station accessibility requirements.
Aedas has discussed the proposals with London Underground’s
Chief Lift Engineer and Accessibility and Inclusion Manager who
have o$ered technical advice regarding the passenger lift
solution, and have commented that they support the step-free
access proposal in principle.
As West Brompton Station is a Grade II listed structure, it will be
important to liaise with English Heritage through each stage of
the design process.
CONTENTS
1 CONTEXT 5
1.1 EXISTING STATION LAYOUT 6
1.2 PHYSICAL CONSTRAINTS 8
1.3 DYNAMIC MODELLING 10
1.4 EXISTING FINISHES 11
2 CAPACITY ENHANCEMENT 13
2.1 EXISTING TICKET HALL 14
2.2 GATELINE OPTIONS 15
2.3 PREFERRED GATELINE OPTION 16
3 STEP FREE ACCESS 19
3.1 EXISTING PLATFORM ACCESS 20
3.2 OVERVIEW OF SFA OPTIONS 21
3.3 LIFT OPTION 1 23
3.4 LIFT OPTION 2A 24
3.5 LIFT OPTION 2B 25
3.7 PREFERRED LIFT OPTION 26
3.8 IMPACT ON EXISTING 28
3.9 DYNAMIC MODELLING 30
4 TICKET HALL REFURBISHMENT 33
4.1 EXTERNAL FINISHES 34
4.2 INTERNAL FINISHES 35
1 CONTEXT
WEST BROMPTON STATION ENHANCEMENTS STAGE C REPORT 5
1.1 Existing Station Layout
West Brompton Station is located on Old Brompton Road, directly
opposite Earls Court Exhibition Centre. The original building is
one of the oldest stations on the London Underground network,
having been constructed in the 1860s, and is widely regarded as
the best preserved example of a District Line station. The building
is protected with Grade II listed status by English Heritage due to
its historic importance.
The original station, designed by Sir John Fowler, opened in 1869
as an extension of the Metropolitan District Railway. A portion of
the building was demolished in 1928 as part of the sale of a plot
of land to the east of the station to the London Electricity board.
The station is built in the Victorian neo-classical style with white
Su$olk bricks and a slate pavilion roof.
To the rear of the building is an iron, timber and glass train shed
roof that was originally accessed through #ve round-headed
arches in the rear wall of the ticket hall. This train shed provides
cover over the north end of platforms 1 and 2 serving the District
Line. Immediately to the west of the station building, also
accessed through the train shed, are platforms 3 and 4 serving
the West London Line. The property to the east of the station is
owned and operated by EDF Energy as an electrical transformer
station with o%ces.
The station is accessed o$ of Old Brompton Road through two
narrow entrances into the ticket hall. The ticket hall has a compact
layout comprising one ticket issuing window, three automatic
gates and one manual wide aisle gate. To the right hand side of
the ticket hall is a ticket vending machine enclosure containing
one Multi-fare Machine (MFM) and one Few Fare Machine (FFM).
A Gateline Attendance Point (GLAP) sits between the gateline and
the ticketing suite. On the paid side of the gateline there is a small
excess fares window occupying a narrow space between the
GLAP and the rear wall of the ticket hall. It is worth noting that the
area of the ticketing suite is unusually larger than the public
concourse in the station building. The sta$ accommodation is
comprised of a separate Station Control Room and Ticket O%ce,
together with a locker room, station o%ce and two WCs. The suite
is accessed through a generous secure lobby with two entrances;
the #rst connects with the ticket hall by a door adjacent to the
ticket window, and the second accesses directly onto a platform
footbridge in the covered section of the platforms, known
historically as the train shed.
6 WEST BROMPTON STATION ENHANCEMENTS STAGE C REPORT
EDF ENERGY SITE
OL
D B
RO
MP
TO
N R
OA
D
STATION
ENTRANCE
HISTORIC TRAIN SHED /
COVERED AREA OF PLATFORMS
PLATFORM 1
PLATFORM 2
PLATFORM 3
PLATFORM 4
Passenger Lift
Passenger Lift
Existing Station Layout
EASTBOUND DISTRICT LINE
WESTBOUND DISTRICT LINE
SOUTHBOUND WEST LONDON LINE
NORTHBOUND WEST LONDON LINE
Ticket
Hall
(See page 14
for detail)
WEST BROMPTON STATION ENHANCEMENTS STAGE C REPORT 7
The structure covering platforms 1 and 2 is 66 ft (20.12m) long,
divided into six bays of brick arches, with a roof of nine bays of
segmental-headed iron trusses, supporting a wooden roof with a
central glazed lantern.
To the south end of the structure is a wooden framed gable-end
clad in vertical planks and supported on square wooden piers
and pilasters with moulded pendants. This angled roof is
considered a prototype for later stations on the District Line.
The ticket hall connects with the #rst of two platform footbridges
in the covered section through two of the original, round-headed
arches in the rear wall of the building.
The #rst footbridge connects with platforms 1 and 2 by a 1.4m
wide stair to each platform. Adjacent to the eastbound platform
stair is a ramp to a second footbridge that again connects with
platforms 1 and 2 by a wider, 2.1m stair to each.
The two footbridges have decorative balustrading, square newel
posts and mahogany handrails supported on decorated cast iron
columns. Their parapets include criss-crossed iron strap panels
that are considered one of the most important heritage features
of the building.
The second footbridge structure continues through an opening
in the historic train shed wall and connects with an external,
uncovered, modern bridge structure that spans over the West
London Line platforms. This bridge is connected with platforms 3
and 4 by a 1.5m wide stair and a passenger lift to each platform.
Platforms 2 and 3 (westbound District Line and southbound WLL)
e$ectively form an island platform, with a pailsade fence and gate
controlling access between the two. The passenger lift to
platform 3 is also accessible by passengers on platform 2, leaving
platform 1 the only area of the station without step-free access.
Existing Aerial View of West Brompton Station