Contractors need to close some M1 junctions between J11a and J15 in order to progress their work. These closures are required for traffic sensors as part of the Motorway Incident Detection Automatic Signalling system.
This detects the levels of traffic and provides real-time information to regional control room staff who monitor the traffic conditions and safety. The data also automatically sets and adjusts the variable traffic speed limits shown on the motorway message signs to drivers. It keeps “traffic moving smoothly, reduces congestion, makes journey times more reliable, and helps reduce accidents”.
The M1 will be closed on the following dates: