New traffic lights on busy Northampton roundabout expected to 'reduce waiting times' and help interchange operate at 'full capacity'

Work has been ongoing at the Queen Eleanor roundabout for more than a year, as it is undergoing a complete revamp after it was deemed “not fit for purpose”.

With completion expected in spring this year, the project will now see the installation and commissioning of new traffic signals between Friday March 13 and Monday March 16.

According to West Northamptonshire Council’s (WNC) contractor, Keir, this will include inspecting the newly installed equipment and infrastructure, testing the control cabinet including power supplies and signal timings and adjusting each cycle of the signals to ensure the junction operates well and that there are no technical or electrical faults.

A spokesperson for Kier said: “Commissioning of the new traffic signals will allow the interchange to operate at full capacity, improving traffic flow and reducing waiting times.

"Engineers must carefully test everything, so the junction is safe before temporary traffic management is removed."

Multiple days of testing is needed to prevent dangerous faults, such as two directions getting a green light at the same time, according to Kier. Everything must be checked and certified before the signals can open.

The spokesperson added: “Engineers check all the equipment ie. 28 signal heads, poles, wiring and automatic traffic detection system - to make sure everything is installed correctly and working as expected.

“The control cabinet is tested. This includes the signal timings, power supply, safety systems and communication links. Each traffic light and traffic detector is then checked individually.

“The whole junction is tested running through full signal cycles. Engineers make sure all movements are safe and no conflicting signals can occur.”

The wider project will also include widening the carriageway on the roundabout, resurfacing and more.

Since the start of the project last year, there have been changing lane closures, as well as full closures, which have caused delays to motorists.

The works were initially due to finish in December 2025, however there has been a delay due to risks which were identified and required additional work to extend the subway.