Initial delays then improved flow expected at new traffic lights in Letterkenny

The new traffic lights at Letterkenny’s Polestar Roundabout will come into operation on Tuesday, October 17, with road users expected to face delays in the teething process before flow improves.

This starts a commissioning process where the phases of the lights will be adjusted to give optimum traffic flow. As part of this commissioning process, the lights may be switched off at intervals to facilitate a series of tests, calibrations and adjustments.

Improvements at the Polestar Roundabout include the installation of traffic signals on each approach and on the circulatory carriageway of the roundabout. Also, amendment of the lane markings and signage to direct motorists to the appropriate traffic lane when using the signalised junction and provision of improved pedestrian and cyclist facilities including new signal-controlled crossings.

“The commissioning of the traffic signals will be completed over a period of two weeks, followed by routine checks thereafter,” Donegal County Council said. “The installation of traffic lights is a key element of the overall Letterkenny Urban Traffic Management Project which focuses on delivering improved traffic flow in Letterkenny.

“The Letterkenny Urban Traffic Management Project which is part of the overall traffic management plan for Letterkenny will not add to the overall capacity of the road network but focuses on improved traffic flow while safely sharing the existing space with all road users.

“The main objective of the Polestar Signalisation Project is to improve traffic flow at the Polestar Roundabout while also providing safe facilities for pedestrians and cyclists at the roundabout.

“Traffic flow will be improved using traffic signals at the roundabout to manage the traffic entering the roundabout. The traffic signals will share out the green time among the four arms of the roundabout based on the volumes on each arm at any time.

“This will speed up the flow on some arms and slow down the flow on other arms resulting in improved operation of this key junction. It is likely that traffic delays will be experienced as the traffic signals are being commissioned and as motorists get used to the new layout and signals. Donegal County Council requests all users of the roundabout familiarise themselves with the revised road layout and follow the direction signage and road markings to navigate the roundabout safely and effectively.

“The adjacent project on the Four Lane Road also includes a number of traffic signals. These signals have not yet been activated and they will not be switched on until after the Polestar Roundabout traffic signals are working effectively.

“Donegal County Council would like to thank the public in advance for their co-operation in the delivery of this important phase of the project.”