Project number: T1246

Improving the way signals are matched to track sections

The purpose of this project was to set out a process that can define and maintain the link between signals and track sections. This information is key to industry tools such as the Red Aspect Approaches to Signals (RAATS) toolkit, enabling them to maintain their network coverage and extend it further.

'We hope the method, developed by data experts from across rail, can be embedded into Network Rail’s processes.'

Dominic Medway
Head of Performance Improvement Planning and Strategy, Network Rail

The challenge

Industry tools that utilise train describer information require an up-to-date and accurate mapping between signals and track sections. Without this the tools cannot utilise the full extent of the data available.

For example, the RAATS toolkit requires this data in order to provide estimates of the number of times signals are approached at red.

Ensuring an accurate and up-to-date mapping between signalling data and track information is therefore very important, as this information is continually changing as
signalling changes are made to the network.

T1246 was set up to address this issue and develop a solution to keeping the mapping between signals and track section current.

What we did

The project focused on identifying what was needed to maintain an accurate and current link between signalling data and track information, in terms of both data and processes.

RSSB brought the right industry stakeholders together, establishing and strengthening relationships throughout the project, and laying the foundation for continued collaboration.

Fostering connections among key industry stakeholders allowed RSSB to facilitate access to the relevant data, and develop a workable process for maintaining the
mapping.

Benefits delivered

The project has defined a process to keep the signal to track section mapping up to date, and enabled a partial update of the current mapping, which supports the ongoing accurate functioning of RAATS.

RSSB personnel have been trained on the process and will be able to carry out further updates on an as-needed basis.

Through its contribution to the development of RAATS version 2, this project is expected to deliver industry £980,000 of benefit over a 10-year period.

The project enables other related research projects, as well as an enhanced and updated RAATS version 2. Another project for the latter is currently being planned and will provide industry with around £8.2m in benefit.