Design of permanent traffic signs, road markings and road studs. Version 1.0.0

DMRB: Road Layout CD 120

National Highways, 2025
Design of permanent traffic signs, road markings and road studs. Version 1.0.0 Download document

Document Status

Current

Supplement

Civil & Structural Supplement

Series

DMRB: Road Layout

Abstract

Provides design requirements for permanent traffic signs, road markings and road studs. Also includes upright traffic signs, parallel and zebra crossing globes, refuge indicator lamps, twin amber flashing lights, bollards, and marker posts.

History

Road layout. Design. Version number: 1.0.0. Issued: September 2025. Supersedes the E Series (Distance marker posts) in Volume 3 - Highway Construction Details - of the Manual of Contract Documents for Highway Works (MCHW), which is withdrawn.

Subjects

  • Civil engineering, infrastructure and public utilities
  • Transport facilities
  • Road layout
  • Roads

Publisher History

National Highways is an executive non-departmental public body, sponsored by the Department for Transport. It has responsibility for operating, maintaining and improving motorways and major A roads in England. Formerly known as Highways England, between 2015-2021 and Highways Agency, between 1994-2015.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

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