Design Manual for Roads and Bridges

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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. It also forms the basis of the road design standards used in many other countries.

DMRB volumes form part of a suite of technical documents produced by National Highways, which comprises:

• Design Manual for Roads and Bridges (DMRB)
• Manual of Contract Documents for Highway Works (MCHW)
• Asset Maintenance and Operation Requirements (AMOR) which supersedes the Network Maintenance Manual and Routine and Winter Service Codes, and its predecessor the Trunk Road Maintenance Manual