Stansted Airport

Station Platform Extension

GRIP stage 4 (Single Option Development)

Client: Hyder Consulting

Date: March 2011

Project Overview

Stansted Airport Railway Station is below London Stansted Airport Terminal Building in Essex, situated at the end of a short branch from the West Anglia Main Line. The branch was constructed and opened in 1991 along with the airport’s terminal building.
The signalling in the area was controlled by Stansted (i.d. SSD) Solid State Interlocking (SSI), which was housed at Liverpool Street Signalling Control Centre. The area was provided with 25kV a.c. overhead electrification.

Stansted Airport had planning permission to expand from 15 million passengers per annum to 25 million. As part of the planning permission, Stansted Airport Limited had to provide additional platform capacity at Stansted Airport Station. Platform 1 & 3 used by National Express and platform 2 was used by Cross Country diesel rolling stock to the buffer stop, making it suitable for some four-car trains only.

The requirement of the scheme was to extend either Platform 1 or Platform 3 for 16-car use and to extend Platform 2 to accommodate four 23.5m long cars. Signalling Scheme plan was developed during GRIP stage 4 along with the supporting document for the final option. This work majorly included alterations to track circuits, extensive works on platforms with new CD/RA and TRS indicators along with plungers, relocation of TPWS loops and bufferstop. Data changes were proposed to Stanstead SSI. Changes were proposed to control tables to alter Lime street controls for additional car formations.

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We have successfully delivered over 115 projects, on time and in budget over the last 18 years.

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Testimonials

What our clients say

"Network Rail has hardly issued any error report, this is an indication of the work produced by Softech. Softech seems to be very proactive in following issues and coming back with solutions."

Afshin Persian
Senior Project Manager, Jacobs Engineering 

"Softech are very good at delivering work. Many thanks for all of your help in meeting the demanding challenges faced on the Stalybridge Re-signalling project."

Richard Green
Principal Project Manager, Amey, Uk

"Softech have made every deadline put to them, provided excellent conduct and good working relationships, Softech understood Network Rail requirements and risks associated with taking GRIP4 designs from another party.

Andy Chaplin
Senior Programme Engineer, Network Rail, UK

 "There can be difficulties when trying to integrate a team of designers into both a design house and a running project.
It is therefore a great credit to Softech that they were able to become part of the Gatwick team and integrate themselves so easily to enable the successful completion of the Gatwick project."

Chris Morgan
Design Delivery Manager, Alstom

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Duncan Lyons
Project Manager, Tata Steel Projects, UK

"Softech understood exactly the level of expertise required. All tasks were delivered in the timescales required some of which at short notice. Completely satisfied with the services provided."

Paul Waby
Signalling And Systems Design Engineering Manager, Alstom

"I am very happy with the quality of work supplied by Softech and would not hesitate to recommend them to other companies."

Andrew Thomas
S&T Standards Manager, Network Rail (High Speed), UK

"The Contract Responsible Engineer for this package of work has done a fantastic job in delivering the full scope of work. The Crossrail Signalling Engineering team has found Softech to be very thorough with their work. The number of design comments raised have been minimal. It has been a real pleasure working with them."

Sean Tarpey
Senior Project Engineer, Crossrail (Network Rail)