NEW average speed cameras on the Forth Road Bridge are set to go live on Thursday.

The temporary cameras stretch along the A90 from the bridge to the Admiralty Junction in order to enforce a new 40mph speed limit and will remain in operation until the end of the project in December 2016. Southbound cameras are also expected to be installed later this year.

The works are taking place adjacent to live traffic and are necessary for the significant upgrade to the road network taking place alongside construction of the new Queensferry Crossing. The speed limit on the A90 northbound has been reduced to 40 mph from south of the Forth Road Bridge to Admiralty Junction to ensure the safety of construction workers and the travelling public. On approach and throughout the roadworks, signs will advise drivers of the speed restrictions.

The decision was made due to a significant increase in activity, with the safety of workers "absolutely paramount", especially given the proximity to the traffic.

Transport Scotland Roads & Infrastructure manager, Steven Brown, said, "We know from our experience of major road infrastructure projects that safety cameras are a tried and tested approach that improves safety for road users and construction workers. We have been impressed with the levels of compliance with the 40 mph speed limit since it was introduced on the A90 northbound.

“We have waited for as long as possible before introducing the safety cameras to the A90, now significant operations are underway within close proximity to live traffic. The safety of our workforce and the travelling public is of paramount importance and the cameras will encourage a safe and steady flow of traffic through the works area.

“Additional safety cameras are expected to be installed southbound on the A90 in this area later this year.”