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They can be the bane of the morning commuter, causing traffic jams and delays throughout the capital. But could roadworks soon be a thing of the past? A new robot has been built that can repair leaking gas mains without the need to dig up our roads.
Today it was given its first test ride in London, and Dan Hewitt went along.
New robotic technology which can carry out repairs to leaking gas pipes from the inside is being tested in London. If successful, it means repair work can be carried out without the need for disruptive roadworks.
See the robot in action below.