High-tech height sensors have been added on the approaches to a notorious railway bridge in a bid to stop high vehicles striking it.
The Whitehouse Road bridge in Swindon is one of the most struck railway bridges in the country.
Despite prominent warnings the bridge has been struck 142 times in the past 10 years.
The sensors are designed to flash a warning if a vehicle is too high to fit under the bridge.
A similar device has also been put in place near the Wootton Bassett Road bridge near the Mannington Roundabout.
The signs are a joint initiative between Network Rail and Swindon Borough Council.