16/12/2025
More traffic issues into 2026!!
Please see listing below showing closures involving St Marks, Castle Street and St Paul roundabouts provided to me by National Highways:
What’s Happening?
· New digital traffic lights at all three roundabouts
· Improved road markings
· Resurfacing at St Paul’s, Castle roundabouts and part of Wilton Road
The current lights have reached the end of their life and are being replaced with modern, adaptive systems. These new lights will adapt in real-time to the number of vehicles waiting, rather than following a fixed timer, helping to improve traffic flow and reduce queuing for drivers, particularly during busy times of the day. The upgraded traffic signals are more energy efficient, lower power and designed for longer-term reliability.
When Will Work Take Place?
· 19 January – 31 March 2026: Castle and St Mark’s roundabouts
· 1 June – 31 July 2026: St Paul’s roundabout and resurfacing
Closures and Diversions
To work safely, we’ll use lane and full closures during the day and overnight. Signed diversions will be in place. Access for frontages and emergency services will be maintained. Below is a list of the planned closures:
Closures - Castle roundabout
· 19 - 29 January 2026
Full closures and lane closures overnight (8pm – 6am).
· 2 – 23 February 2026
Lane closures during the day.
· 14 - 27 July 2026
Full closures and lane closures overnight (8pm – 6am).
Closures - St Mark’s Roundabout
· 2 – 19 February 2026
Full closures and lane closures overnight (8pm – 6am).
· 2 – 23 March 2026
Lane closures during the day.
Closures - St Paul’s Roundabout
· 1 – 22 June 2026
Full closures and lane closures overnight (8pm – 6am).
· 29 June – 20 July 2026
Lane closures during the day.
· 21 - 31 July 2026
Full closures and lane closures overnight (8pm – 6am).
Working Together
We’ve coordinated with SGN to minimise disruption. Our works follow SGN’s gas mains renewal - the works could not happen at the same time due to the impact they would have on road users.
Please use this information to try and manage the times you are on the roads and hopefully this will help you all avoid some of the disruption these works are going to cause in 2026.
Hopefully in the long term these changes to the traffic light system will help traffic move better around these areas.
Good luck!!