M4: Safety

Department for Transport written question – answered at on 1 December 2022.

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Photo of Gill Furniss Gill Furniss Shadow Minister (Transport)

To ask the Secretary of State for Transport, if he will publish the findings of National Highways' trial of computer analysis of CCTV images for stopped vehicle detection on smart motorways carried on the M4 near Bristol in 2020.

Photo of Gill Furniss Gill Furniss Shadow Minister (Transport)

To ask the Secretary of State for Transport, on what proportion of all lane running smart motorways is computer analysis of CCTV images for stopped vehicle detection operational.

Photo of Richard Holden Richard Holden Parliamentary Under-Secretary (Department for Transport)

National Highways does not have computer analysis of CCTV images for stopped vehicle detection operational on any existing All Lane Running smart motorways. National Highways preferred approach is radar based stopped vehicle detection (SVD) technology, which is in place on all existing All Lane Running motorways. SVD is capable of detecting stopped vehicles in live lanes, automatically alerting drivers with ‘report of obstruction’ signs, and sending alerts to control rooms.

National Highways are currently reviewing the status of the 2020 technical report.

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