According to AutoExpress, the Hindhead Tunnel has a system called "Clearway" made by Navtech Radar. Apparently it is an alternative to CCTV to detect cars tailgating, changing lanes etc.
I do not know if it is under test or operational. Fingers crossed.
Ian
2011 Plus 4
Wild Mogs Reims 2019, Goodwood 2018, Isle of Man 2017, Carried on to Caramulo" 2016
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