Are traffic signals the answer to solving traffic problems?
Advantages of Traffic Signals: Signals offer maximum control at intersections. The primary function of any traffic signal is to assign right-of-way to conflicting movements of traffic at the intersection. By alternately assigning right-of-way to various traffic movements, signals provide for the orderly movement of conflicting flows. When properly timed, a traffic signal increases the traffic capacity of an intersection. When installed under conditions that justify its use, a signal is a valuable device for improving the safety and efficiency of both pedestrian and vehicular traffic. Signals reduce certain types of accidents, most notably right-angle or broadside collisions. Disadvantages of Traffic Signals: While many people realize that traffic signals reduce the number of right-angle collisions at an intersection, few realize that signals can also cause an increase in rear-end collisions. Normal practice includes a willingness to accept an increase in rear-end collisions in exchange
