There are currently faults in the detection equipment at Harbour Crossroads, which is causing delays in the area.
Resurfacing overnight damaged six sensors in the middle of the junction. This means that the signals are giving the longest time of safety clearance (all red) after each phase of the junction.
The right turn into North Quay from Boot Hill is also affected; giving the minimum green time and working intermittently.
Siemens will be on site tonight and tomorrow morning to repair and reconnect the detection equipment.
Drivers are being advised to use alternative routes wherever possible.