Why do I sometimes get stopped at every every signal, while at other times I can travel through consecutive signals without having to stop at a red?
The traffic signals on city arterial roadways are generally synchronized or co-ordinated to minimize stops and delays on the arterial roadways. In other words, the City tries to provide a smooth movement of the traffic through groups of signals on an arterial street. The degree or quality of traffic signal co-ordination is influenced by a number of factors including such things as the spacing of the signals along the street, the prevailing speed of traffic on the street, and the traffic signal cycle length.
