DMRB: Highway Structures and Bridges CD 377 Revision 4 Requirements for road restraint systems (formerly TD 19/06). Revision 4

Publication Year

2021

Document Status

Current

Abstract

Gives requirements for permanent and temporary safety barriers, including: vehicle parapets, terminals, transitions, crash cushions, pedestrian parapets, pedestrian guardrails and pedestrian restraint and protection, vehicle arrester beds, anti-glare systems and cattle grids. Covers containment levels, impact severity level, working width classes and vehicle intrusion classes, length of need, set-back, passively safe road furniture, provision at structural supports, vehicle parapets, gantries, nosing areas and junctions, and central reserves.

Document History

Highway Structures and Bridges. Design. Replaces CD 377 Requirements for road restraint systems (formerly TD 19/06). Revision 3, (HE, 2020). Supersedes TD 19/06 Highway structures: Design (substructures and special structures) materials. Special structures. Requirement for road restraint systems (see also HA IAN 97/07) (includes Correction February 2008) (HA, 2006). Design manual for roads and bridges (DMRB). Revision 0 dated Mar 2020 - replaces TD 19/06. Revision 1 dated Jun 2020 - Scotland National Application Annex requirements created. Revision 2 dated Jul 2020 - Wales National Application Annex requirements created. Revision 3 dated Dec 2020 - updates Scotland National Application Annex. Revision 4 dated Jan 2021 - updates Northern Ireland National Application Annex.

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