Replacing traffic lights on the London Colney roundabout

Published: 30 Jul 2018

The London Colney roundabout on the A414 is getting new, upgraded traffic lights as part of a summer of highways improvement works.

The lights on the roundabout, where the A414 meets the A1081, need replacing following an increasing number of faults with the aging lights. Engineers will also be upgrading the control system for the lights with a more modern, intelligent system that will automatically modify the light timings according to how heavy the traffic is in each direction.

Works started on 23 July and are planned to finish by 31 August. Work will take place on site between 7am and 7pm, however lane closures will remain in place 24 hours a day to maintain road safety. The traffic lights will be turned off for the duration of the works.

Phil Bibby, Cabinet Member for Highways, said: “We’re carrying out these works during the school holidays when traffic is lighter to minimise disruption. I hope people will bear with us while we carry out these important works. While they will cause some delays for traffic using the roundabout, the end result will be more reliable and better managed traffic lights, and that will improve journeys through this important junction.”

Once the traffic lights have been replaced, we will also be resurfacing the roundabout to replace the worn out road surface.

For more information about roadworks being carried out in the county this summer visit