Interim Advice Notes 179/14 Guidance on the use of vehicle mounted high level variable message signs to provide advance warning of lane closures for relaxation works on dual carriageways with a hard shoulder

Publication Year

2014

Document Status

Withdrawn

Abstract

Advises on alternative TTM techniques at various points: approach zone, lane change zone and on relaxation scheme works on dual carriageways with a hard shoulder. Applies to the HA network in England.

Document History

Interim Advice Notes (IANs) are issued by the Highways Agency from time to time. They contain specific Guidance, which shall only be used in connection with works on motorways and trunk roads in England, subject to any specific implementation instructions contained within an IAN. Whilst IANs must be read in conjunction with the Design Manual for Roads and Bridges (DMRB) and Manual of Contract Documents for Highway Works (MCHW) for the above works, and may incorporate amendments or additions to documents in these manuals, they are not part of the DMRB or MCHW. Supplementary to (but does not replace any elements of) the existing guidance for TTM at road works, provided in the DfT Traffic Signs Manual Chapter 8, Parts 1 and 2 and IAN 150/14.

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