The cameras are due to go live on Monday 20th July and will remain in place until the completion of the "M8 M73 M74 Motorway Improvements Project" in spring 2017.
Scottish Roads Partnership (SRP), the consortium responsible for designing, building, financing and operating the project roads, says it's installing safety cameras to reflect the "significant increase in construction works scheduled in the months ahead".
They're being installed in phases across the project, beginning on the M74, and will be rolled out over the coming months. On approach and throughout the roadworks, signs will advise drivers of the speed restrictions.
Cameras will 'go-live' on the first section of the M74 northbound and southbound from Junction 3, Carmyle to Junction 6, Hamilton, followed by:
- M73 both directions from Junction 1, Maryville to Junction 2, Baillieston
- M8 both directions from Junction 10, Easterhouse to Junction 8, Baillieston
- A8 both directions from Baillieston to Shawhead Junction
- A8 both directions from Shawhead Junction to M8 Junction 6, Newhouse
Graeme Reid, Project Sponsor for Transport Scotland, said: 'We know from our experience of major road infrastructure projects that safety cameras are a tried and tested approach that improves safety for both road users and the adjacent construction workforce during what will be an extremely busy period in terms of construction.
'Not only do the cameras create a safer environment for all concerned, they can also help improve the flow of traffic through the works. With more than 100,000 vehicles using these key routes each day, we are acutely aware of the challenges involved in keeping the traffic moving whilst delivering a project of this scale and complexity. However we will continue to work closely with Scottish Roads Partnership to ensure disruption is kept to a minimum.
'Once complete, congestion across the central Scotland motorway network will be significantly reduced, with travel time reliability between the main route of Glasgow and Edinburgh improved.'
Chief Inspector Fraser Candlish of Police Scotland, said: 'The reduced speed limit is necessary to ensure that drivers are able to cope safely with the inevitable effects of the road works such as narrowed lanes, changing lanes, contra-flow and construction traffic. Highly visible average speed cameras are an effective way of encouraging motorists to respect the reduced speed limit.'
The M8 M73 M74 Motorway Improvements Project began in February 2014 and is scheduled for completion in spring 2017.