Gospel Oak to Barking

Previously one of London’s neglected railways, this line has gained investments that have vastly improved its service and increased passenger numbers.

The Gospel Oak to Barking platform extension programme is a scheme that looked to increase train capacity from two-car to a four-car line along the 11-station inner London route.

Stations ranged from traditional brick block front walls to viaduct stations onto prefabricated platforms. This significant variance in the amount of structural and civil work needing to be completed for each station, meant creating three diverse solutions.

Ensuring continuous communication at every stage with relevant stakeholders, we made sure that all client aspirations were met. Nevertheless, many challenges were encountered.

Finding solutions that avoided rebuilding entire stations was a crucial strategy to manage time and cost within the project. With technical reasoning and design management, our unique platform modelling saw the successful alignment of trains and rolling stock to the platform edge. In several stations, we were also able to significantly reduce the required platform length while ensuring four car capacity. As an outcome time and cost were both condensed as it avoided the placing of apparatus’ such as lighting and CCTV systems without compromising safety.

The line will now support the development of 10,800 homes in the Barking area alone, and is aiding the economic growth in zones along the line. 

With platform extensions, comes the increase of passengers, thus the need to safely accommodate them. We analysed fire scenarios, platform capacity, and emergency preparations to determine the need of a secondary means of escape. Due to how close neighbouring stations were to each other, trains were able to detrain at other stations in case of a fire, with arrangements for passenger pickups at other sides of the station to offer further means of escape.

The Gospel Oak to Barking extension scheme was undertaken in parallel with Network Rail’s separate project to introduce a 24KV electrification on the line. This made co-operation with the other teams vital to ensure that no delays occurred.

To ensure the development was up to TfL standards, upgrades and support procedures comprised of Structural & Utility Site Investigations, BIM Model development, Technical Site Supervision, and geotechnical earthwork structure assessments were put in place,

Japanese knotweed on the line was the biggest environmental challenge within the project, as a highly invasive species, we had to manage the work force and take protective measures in making sure it was kept onsite, safely concealed and removed.

As a rebranding and extension project, the scheme has dramatically increased the capacity allowed on trains and platforms within the Gospel Oak to Barking line - supporting the efficient transportation of passengers while increasing TfL’s profile, and creating an economic impact along the route.


  • icon-arrow10,800 - homes created at Barking Riverside
  • icon-arrow11 - stations developed

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