Laser powered bridge

OK, not really laser powered but lasers are being used in Wiltshire UK to alert drivers when their loads are tall enough to cause a bridge strike.

Heavy goods vehicles frequently strike the bridge after misjudging the height and width – but this could become a thing of the past thanks to some laser-guided technology.

There are now two new interactive height warning signs on the bridge that use lasers to judge whether a vehicle is too tall or wide.

The new signs, funded by Network Rail, warn drivers approaching the bridge from both sides if they are about to strike the masonry.

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Michael Harrison

Husband, Programmer, Irish dancer, tinkerer, astronomer, layabout (as much as possible)

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