If you wish to report a malfunctioning signal, call Public Works at (949) 461-3480 or use the City's Ask Lake Forest system. Ask Lake Forest is available 24 hours a day.
What are the Advantages of Traffic Signals?
The primary function of any traffic signal is to assign right of way to conflicting movements of traffic at an intersection. Traffic signals are not a "cure-all" for traffic problems. The primary goal is to attain the safest and most efficient overall traffic flow possible.
Here are some advantages of a traffic signal:
Traffic signals are more costly than is commonly realized, even though they represent a sound public investment, when justified. The major components associated with the installation of a traffic signal are as follows:
Why Traffic Signals are Needed?
As traffic volumes increase beyond the capability of lesser controls, such as an all-way stop, it may be necessary to install a traffic signal. Before installing a traffic signal at an intersection, traffic engineers evaluate accepted warrants for traffic signals (justifications), which are found in the State of California's Manual on Uniform Traffic Control Devices (CAMUTCD).
The transfer of a signal control to a special signal operation is called preemption. There are three common types of preemption:
Traffic signals assign the right of way to various traffic movements for different time intervals depending on traffic flow levels. Traffic signals are timed based on traffic demands at certain times of the day. Traffic signals attempt to assign most of the available green time to the heaviest traffic movement. Traffic signal controllers provide opportunities to have a variety of signal timing plans throughout the day.