Modern technologies have allowed train control to move from trackside signals to in-cab displays authorising the driver to proceed. Where required, the remaining functions of the driver can be mechanised, allowing the train to operate fully automatically. Our Rail Control Systems team has unparalleled experience of the Computer-Based Train Control Technologies (CBTC) driving this change on metro systems and the European Train Control System (ETCS) and Positive Train Control (PTC) being deployed on mainline infrastructure around the world.

Fitting these technologies is only part of the change required to deploy in-cab signalling; significant transformations in operations and maintenance practices are also needed. To gain the full capacity, reliability and financial benefits of the upgrade, infrastructure changes ranging from power supply and track upgrades to in-cab CCTV and Traffic Management Systems must be considered. If in-cab signalling is used to provide unattended and driverless operation, even more radical infrastructure changes may required, such as platforms screen doors and obstacle detection systems.

We take a holistic approach to implementing in-cab signalling technologies. Alongside our train control expertise, we have deep capabilities in all associated infrastructure areas, as well as railway operations, human factors, rolling stock fitment, high-integrity communications, migration from legacy signalling, reliability and safety assessment and electromagnetic compatibility so we can optimise the upgrade from a whole-railway perspective. We also have experience in leading and supporting the stakeholder engagement and change management activities required to ensure that operators, maintainers, analysts and other business stakeholders adapt their processes and mindsets to work optimally with the new technology.

Contact Us


Matt Phillips
Director, Rail Infrastructure Systems
+44 (0) 20 7105 3758