M4 Smart Motorway Works BerkshireAdd to Lightbox Download
A sign announcing works by Highways England to convert the M4 into a 'smart motorway' is pictured close to Junction 5 on 22nd April 2021 in Langley, United Kingdom. The government has announced that all future 'all lane running' motorways, including any such as the M4 currently being constructed, will require radar technology to detect stopped cars.
- Copyright 2021 Mark Kerrison
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