Traffic Tom is a traffic-management puzzle: cars approach a junction from several directions, and you control when each one moves so that none of them meet in the middle.
It gets hard quickly because the traffic never stops arriving — every car you release creates a new timing constraint on the ones behind it.
Keep traffic flowing through the junction without collisions, for as long as you can as the cars arrive faster.
Release cars in bursts from one direction rather than one at a time from each, which reduces the number of crossing paths in the junction at any moment.
Yes — tap cars to release them. Nothing to install.