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Site updates

5th July – IAN 129/10 added to IANs Page.

24th June – June 2010 DMRB available

17th May – The contents of this website are under review following the formation of a new UK Government. Therefore, there will be no update to the DMRB in May. Update to DMRB due for publication on 24 June 2010. There will be no update to the MCHW.

6th April – IANs 123/10 and 128/10 added to IANs Page

10th February – There will be no update to the DMRB in February 2010.

23rd November – IAN 111/08 superseded, IAN 111/09 added to IANs Page.

Network Management Manual and Routine & Winter Service Code

The requirements and advice for the management of maintenance on the trunk road network are described in two documents, the Routine & Winter Service Code (RWSC) and the Network Management Manual (NMM).

Readers are recommended to read the introductory parts to each of the documents to understand their coverage. The Agency intends for these documents to be updated on a regular basis to reflect changes to policy. Methods to publicise these changes are being developed.

Routine & Winter Service Code

The current version of the RWSC is Version 5.10, Amend No. 3, dated July 2009. This replaces Version 5.10, Amend No.2, dated January 2007.

Network Management Manual

The current version of the Network Mangement Manual is Issue 1, Amend No. 8, dated July 2009. This replaces Issue 1, Amend No. 7, dated June 2008.

Archive versions of the document are available from the Highways Agency's Network Management Policy Team.

The Network Management Manual has been divided into sections in order to reduce download time.

NMM Table of Contents
Section Contents
(PDF, Opens new window) NMM Part 0 Introduction
(PDF, Opens new window) NMM Part 1 Management of Health & Safety
(PDF, Opens new window) NMM Part 2 Asset Management Records
(PDF, Opens new window) NMM Part 3 Routine Service
(PDF, Opens new window) NMM Part 4 Traffic Management
(PDF, Opens new window) NMM Part 5 Winter Service
(PDF, Opens new window) NMM Part 6 Network Occupancy Management
(PDF, Opens new window) NMM Part 7a Traffic Incident Management and Contingency Planning
(PDF, Opens new window) NMM Part 7b Traffic Incident Management and Contingency Planning (contd)
(PDF, Opens new window) NMM Part 8 Better Information for Road Users
(PDF, Opens new window) NMM Part 9 Intentionally blank
(PDF, Opens new window) NMM Part 10 Programme Planning & Scheme Development
(PDF, Opens new window) NMM Part 11 Administration

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Air Quality

Revised guidance for air quality assessments. Downloadable air quality spreadsheets available.

Highways Agency Accepted EN 1317 Compliant Road Restraint Systems

A list of products that the HA are aware have the required declaration of performance.

Road Restraint Assessment Process (RRRAP)

'Road Restraint Risk Assessment Process (RRRAP) 'Excel spreadsheet which enables designers to establish the need for a vehicle restraint and, if so, its performance requirements.

Safety Barriers

A study on the performance and cost effectiveness of median safety barriers installed on major roads.

Travel of Errant Vehicle Report

A report on how and where errant vehicles travel after leaving the carriageway.

Passively Safe Gantry Risk Model (PSGRM)

The PSGRM has been developed to help designers determine whether or not a passively safe gantry is suitable for a particular site.

Eurocodes

Information on preparations for the use of Eurocodes in the design of UK highway bridges and structures.