Within a concurrency party (between two obstacles) the steps in almost any bands can point alone, but all rings must get across the boundary (proceed to a unique level concurrency party) concurrently.

Period control is especially suitable to actuated power over typical intersections, especially those with covered remaining turn movements. Two actuated leftover turn phases on the same street can point by themselves, with say the westbound change state getting a shorter time compared to the eastbound within one period, and reverse developing within the next pattern. Read the rest of this entry »