Road Geometry. Highway Features. Segregated left turn lanes and subsidiary deflection islands at roundabouts (Withdrawn)

DMRB Volume 6 Section 3 Part 5 (TD 51/17)

Highways England, 2017
Road Geometry. Highway Features. Segregated left turn lanes and subsidiary deflection islands at roundabouts (Withdrawn) Download document

Document Status

Withdrawn, Document not available for download

Supplement

Civil & Structural Supplement

Series

DMRB Volume 6 Section 3

Abstract

Updates design requirements, methodology and advice for providing segregated left turning lanes and subsidiary deflection islands for trunk road roundabouts, ensuring safe operation for all road users.

History

Superseded by CD 116 Geometric design of roundabouts (HE, 2019). Supersedes DMRB 6.3.5 TD 51/03 Segregated left turn lanes and subsidiary deflection islands at roundabouts (HA, 2003). DMRB 6.3.5. Design manual for roads and bridges (DMRB).

Subjects

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

Publisher History

Highways England (formerly Highways Agency) was transformed into National Highways in 2021. It was responsible for the operation, maintenance and improvement of England's motorways and major A roads. It was an executive non-departmental public body, sponsored by the Department for Transport.

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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