How do you decide where and when to install traffic signals?

The installation of traffic signals follows a nationally standardized process that is outlined in the Texas Manual of Uniform Traffic Control Devices (TMUTCD). There is a set of criteria that must be satisfied before a traffic signal can be installed, most of which are based on traffic volumes. Not every street can be given a traffic signal, so traffic volumes are a large factor in determining which intersections will be signalized.

Distance Between Traffic Signals

In addition, traffic signals must be spaced a certain distance apart in order to function well. The intersection of 2 major roadways is always assumed to be a future traffic signal location and then other potential locations must be spaced an appropriate distance away. As other traffic signals are added at minor intersections, it further limits the possible location of additional traffic signals.

Time Frame for Installation of a Traffic Signal

Finally, the time frame for the installation of a traffic signal is primarily determined by the funding available to us each year. All of the intersections that meet the necessary criteria are prioritized each year based upon the amount of traffic they serve, an analysis of the conflicting movements, and other factors. The City then assigns the available funding to the top-ranked locations.

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1. Who do I contact to report a problem with a traffic signal?
2. Who maintains all of the major traffic signals on the outskirts of Coppell?
3. Does the City of Coppell record any of the video from its traffic cameras?
4. How are the yellow and all-red clearance times calculated for a traffic signal?
5. How do you decide where and when to install traffic signals?
6. How do I request a new traffic signal?
7. Who do I contact to report a malfunctioning school zone warning flasher?
8. Can speed bumps/humps be installed on my residential street?
9. Can parking be prohibited on my residential street?
10. What can be done about speeding on my residential street?
11. Can an intersection be changed to allow 2 lanes to turn right?
12. Who maintains all of the signs in the City of Coppell?
13. Can a “Children at Play” sign be installed in our neighborhood?
14. Can a Stop sign be installed on my residential street?
15. Who maintains the pavement markings in the City?
16. What does "Stop Here on Red" mean?