DMRB Volume 6 Section 2 Part 3 (TD 16/93) Road Geometry. Junctions. Geometric design of roundabouts (Including NRA addendum - Dec 2000)
Publication Year
1993
Document Status
Withdrawn
Abstract
Gives advice and standards for the geometric design of roundabouts with regard to traffic operation and safety. Amendments and additions have been made to reflect current good practice in aspects such as entry path curvature assessments, geometry of entries, segregated left turn lanes, over capacity in early years, and speed reducing measures in mini roundabouts.
Document History
NRA DMRB 6.2.3 Supersedes - TD 16/84 and TA 42/84. Superseded by TD 16/06 and NRA addendum dated January 2009.
Publisher Information
National Roads Authority
The National Roads Authority's (NRA) primary function, under the Roads Act 1993, was to secure the provision of a safe and efficient network of National roads. They were responsible for the planning and supervision of construction and maintenance, publishing the NRA DMRB and NRA MCDRW. In 2016 the NRA merged with the Railway Procurement Agency (RPA) to form a new organisation, Transport Infrastructure Ireland (TII).
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