WHAT on Earth has happened to the traffic lights between Gainsborough Road and Wilderspool Causeway?

Every time I venture in that direction from Stockton Heath there is a queue of cars waiting to get through. It appears that the timings are changed in the evenings allowing around seven seconds for cars to go straight on, yet much longer (around two minutes) for Loushers Lane and Gainsborough Road. Surely it would make sense to change the sequence so it doesn't take around 45 minutes to travel a distance less than a mile?

KATIE LANE Appleton