How are signals synchronized?
Factors to consider when synchronizing signals are the spacing between signals, the volume and speed of traffic and the cycle length. Signals along main arterials are generally synchronized during heavy traffic times. It is not always possible to synchronize cross traffic. When two-way progression is not possible, the City often uses computerized traffic modeling to find coordinated timing plans that maximize traffic flow. Specific questions about signal progression should be referred to the City's Engineering Department at 214.509.4576.

Show All Answers

1. What is the speed limit when there are no speed limit signs?
2. Is it possible to change the speed limit on a particular street?
3. How would I make a request to have a traffic signal or stop sign installed?
4. Can I ask for a speed limit sign to be installed in alleys?
5. How does a signal operate? Is a specific signal operating correctly?
6. How are signals synchronized?
7. Why do I have to wait so long after I stop at a specific signal?
8. How do I find how much traffic flow is at a specific location?
9. Are Stop signs effective as a tool for speed control?
10. Does the City install Speed Bumps (Road Humps) to control speeding problems on residential streets?
11. How does a pedestrian signal work?
12. Is the City of Allen working on getting DART rail service?