Road users in Lancaster are being asked to use all available lanes to reduce delays, after changes were made to the junction approaching Skerton Bridge.
To tackle longstanding safety issues caused by drivers changing lanes on the bridge, Lancashire County Council has created a new road layout controlled by traffic lights at the junction of Morecambe Road and Owen Road.
There are now two lanes coming from Morecambe and two from the north.
Highways engineers are tweaking the timings on the lights to make them as efficient as possible, but are also asking drivers to use all lanes at the junction to help reduce delays.
Wai Kee Leung, principal highway engineer for the county council, said: “We apologise for any inconvenience people have been experiencing since the traffic lights were turned on.
“We are aware of delays while drivers become familiar with the new layout and the timing of the traffic lights is adjusted.
The traffic lights were switched on last week and vehicles are now using the new road layout.
“Traffic engineers have been on site at various times to monitor the situation and we’ve already noticed some improvement.”
Drivers can now choose a lane on the approach to the traffic lights, which reduces the need to change lanes further up.