Question to the Department for Transport:

To ask the Secretary of State for Transport, what work is being undertaken by her Department to identify cross-sector infrastructure interdependencies and single points of failure affecting the transport network.

Transport is one of the UK’s 13 Critical National Infrastructure (CNI) sectors. Given the cross-sector infrastructure interdependencies, resilience across CNI, including transport, is critical to the UK.

My department is taking forward work to deliver the transport implications of the UK Government Resilience Action Plan, published July 2025, recognising the complex and interdependent nature of our critical transport operations. This includes carrying out a Criticalities Review; working with partners across the transport sector and government to improve our understanding of the interdependencies and single points of failure affecting the transport network. This will enable us to develop robust and informed measures to mitigate the risks and build resilience within the system.

Furthermore, as committed within the recently published Climate Adaptation Strategy for Transport, the department is developing guidance to support transport operators to identify their upstream interdependencies and the cascading failures associated with climate risks.