I followed a large goods vehicle towards a local roundabout this evening. As the truck entered the roundabout I noticed a sign that had lit up on his approach:
'Your vehicle is overheight for the next low bridge - turn round here' The sign went off as I approached, so I assume it must me equipped with a sensor that can measure the height of vehicles.
I though this was a very good idea, as it gives the vehicle an opportunity to turn before getting trapped in front of the bridge and having to reverse. As it happened said truck was taking the 1st exit from the roundabout anyway.
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A Useful Sign new
A Useful Sign new