Traffic Signal simply amplify the issue.Large numbers of stationary traffic rather than a simple filtering sytem like an RA.

RA were made for each lane to have a function.

Lane 1 is for traffic turning left.

Lane 2 for traffic going straight ahead.

Lane 3 for traffic going right or straight ahead.

Where the issues are in this country is no-one can wait and will use whatever lane that has least traffic.This where problems occur.
Its the same as where if the 2 lanes at a left turning are full people will use one of the straight ahead lanes as a 3rd left lane.

It is not RA or Traffic Signals we need its people who respect others and wait in line.