They should employ people to centrally control and manage traffic lights dynamically. Some of the traffic flow is horrendous with so much unnecessary stop/start with lights green with no fucker going through with main roads snarled as give them 30 seconds which is no where near long enough. One slow bastard looking at their phone when lights go green and handful of cars get through.
They would argue they have sensor control but if someone could see they need to clear a road as the traffic jams are causing knock on effects. Never going to happen but would help ease pollution so the eco fuckers woudl be happy.