Research and analysis

M25 junction 23 to 27 third year evaluation report

Evaluation following the third year’s operation of the first smart motorway all lane running scheme, the M25 junction 23 to 27.

From:
Highways England
Published
16 July 2018

Documents

M25 Junction 23 to 27 Third Year Evaluation Report

PDF, 4.6 MB, 57 pages

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Details

Highways England has commissioned this project to monitor and evaluate the impact following the third year’s operation of the first smart motorway all lane running (SM-ALR) scheme, the M25 junction 23 to 27.

The performance of the scheme is assessed for a third year of operation to:

  • review the safety performance during the initial period of operation
  • continue to monitor and understand the change in risk to road users and to road workers
  • provide evidence of the benefits of the concept
  • provide evidence to help improve the concept of operation and the design requirements

This report presents the results following the third year of evaluation from May 2016 to April 2017. It is split into sections to cover each of the objectives of SM-ALR: flows, journey times and safety.

Updates to this page

Published 16 July 2018

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