Question to the Department for Transport:

To ask the Secretary of State for Transport, pursuant to the Answer of 1 December 2025 to Question 93460 on Roads: Safety Barriers if she will publish the (a) location and route section, (b) date granted, c) reason of each departure from standard; what plans she has for upgrades to rigid concrete barrier.

The locations, routes and dates of approval for the departures from standard allowing steel crash barrier to be replaced with new steel barrier, rather than concrete, are as follows:

• M4 Junctions 13-14: 20/08/2025

• M6 Junction 37-38: 12/05/25

• M5 Junctions 23-24: 24/04/24

• A1(M) Junctions 37-38: 02/12/24

The reason for permitting departures from standard allowing the replacement of life-expired steel barrier with new steel barrier and not concrete barrier is due to the affordability of concrete barrier schemes – this can be either due to the cost of the concrete barrier in isolation or the additional works which would be required in order to change the barrier provision from steel barrier to concrete barrier.

Plans for upgrades to rigid concrete barrier:

Given the availability of new higher-containment modular precast concrete barriers, and higher-containment steel barriers, a tiered approach has now been adopted for the renewal of existing central reserve barriers.  The highest tier is the provision of rigid, higher-containment concrete barrier.  This can be relaxed to the provision of a non-rigid, higher-containment concrete barrier or a higher-containment steel barrier. However, this is only permitted if supported by a documented justification and risk assessment.