Before scheduling the roadworks at Gateway services, the Highways Agency carefully considered the potential impact on road users. Based on the typical traffic flow over recent years on this part of the M1, and keeping the same capacity by ensuring all existing lanes are open during the day, any delay was assessed to be minimal.
It is normal practice to maintain a separation of at least 10 km between concurrent major roadworks on motorways, where possible. The Gateway services are more than 10 km from junction 6a.
Traffic flow at the Gateway services is half that at junction 6a, so many drivers will only experience one set of roadworks on the M1.
The Highways Agency concluded that the safety benefits from completing the roadworks between junctions 1 and the Gateway services justified putting them on at the same time as those between junction 6a and 10.
Both sets of roadworks are expected to be complete by the end of 2008.