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UNDERGROUND drones are being used to repair gas pipes for the first time in Scotland in a bid to cut down on roadwork chaos.
The remote-controlled robots work inside the gas pipes to spot leaks and carry out repairs.
The technology means less road has to be dug up, reducing the need for dreaded contraflows in already congested streets.
The pioneering trial is taking place in Edinburgh’s notoriously congested New Town area and involves inspecting around half a mile of metal pipeline.
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