Works are currently underway near traffic lights on the corner of Conway Road and Charlotte Road and are responsible for the closure of that particular exit from Champenys Retail Park.
Motorists are therefore left with one way out and forced to exit on to Mostyn Broadway, resulting in major delays.
Motorists reported delays of longer than an hour and a half to get out of the retail park.
A Conwy County Borough Council spokesperson said: “A traffic engineer made a site visit on Wednesday and advised the contractors on ways to improve traffic management in the area whilst the work is taking place.”
The spokesperson said once works are being completed to improve traffic flow out of Charlotte Road by providing clearer visibility at the junction, replacing the traffic light with a give way and installing a zebra crossing at a better location to improve pedestrian movement.