How does the City decide where to install signals?

Traffic signals are usually warranted based on minimum traffic volumes during eight hours of a typical weekday. These minimum volumes, or "warrants," vary depending on the speed of the roadway and the number of approach lanes.

For a signal to be considered, it needs to meet the necessary warrants and be justified by an engineering study. Engineering studies review factors such as access and distance to nearby signals, lane geometry, and future road plans. If all the necessary conditions are satisfied and funding is available, a signal installation may be considered.

Show All Answers

1. How do traffic signals work?
2. How much do traffic signals cost?
3. Will a traffic signal make an intersection safer?
4. How does the City decide where to install signals?
5. Why is the "Walk" light so short? I can only get halfway across before it starts flashing.
6. Why can't the signals be timed together to reduce delay?
7. What should drivers do when a traffic signal is flashing or all lights are dark?
8. How should drivers respond to a flashing yellow arrow?
9. Which government agency owns which traffic signals?