To improve the flow of traffic and eliminate driver frustration
As a truck driver making deliveries in the early hours of the day, I am frequently frustrated when approaching a red light at a junction, only to sit there with no other traffic anywhere around.
My suggestion is that between the hours of say 01.00-05.00 (this could be varied according to local conditions) traffic lights display a flashing amber which would meen proceed across the junction in a controlled manner.
I came across this when visiting Rome where in the city they do not have lights at some junctions and proceed in a form of give and take and merge which seemed to work quite well. This being done during a busy day not in the night