Design Manual for Roads and Bridges

The Design Manual for Roads and Bridges (DMRB) is a series of 15 volumes that provide standards, advice notes and other documents relating to the design, assessment and operation of trunk roads, including motorways in the United Kingdom, and, with some amendments, the Republic of Ireland.

[3] TD 19/06 – "Requirements for Road Restraint Systems"[4] was issued and the safety barrier drawings in Volume 3 of the Manual of Contract Documents for Highways Works were withdrawn, to be replaced by Highways Agency accepted EN 1317 Road Restraint Systems list.

Its remit was subsequently extended to include roads in Scotland and Northern Ireland.

DMRB is managed by National Highways on behalf of the agencies responsible for trunk roads in Scotland, Wales and Northern Ireland.

Between April 2015 and March 2016 a wide ranging stakeholder consultation and developed a number of recommendations.

The DMRB is used to design trunk roads such as the A20 in the UK.