We understand the huge amount of frustration the works at the junction of Heol Isaf and Llantrisant Road have caused, and apologise for how people have been affected. We have been working very closely with Cardiff Council and our contractor, Alun Griffiths, to look at better and safer ways to control traffic at peak times.

From this afternoon Alun Griffiths are introducing manually controlled traffic lights 20 to 30 metres to the west of the roundabout at peak times. These will be responsive to traffic flow and ensure, for example, that traffic from Radyr can get onto Llantrisant Road more easily.

When they are red, they will free up Heol Isaf traffic to move onto Llantrisant Road; when green, traffic from Heol Isaf will need to give way at the roundabout as normal, allowing traffic to clear from the west of the roundabout.

The lights will be operated at peak times between 3.30pm and 7.00pm and 6.30am and 9.30am weekdays. Work will also continue at the weekend on the dawn to dusk basis and we will monitor traffic flow and use the manually operated lights if required on Saturdays and Sundays.

The contractor, Alun Griffiths, has also doubled the number of workers on the junction so that we can complete more quickly.

We anticipate these arrangements being in place for the next three weeks and are aiming to reintroduce traffic lights operating between 9.30 to 3.30 from week commencing 9 December.

We apologise for the inconvenience and frustrations caused and will continue to closely monitor the situation and make any safe and effective adjustments we can.