Does coordination “break” at major intersections because the cross street volume is also very high?
Generally, coordination can continue through major intersections, but sometimes there is a break along a street if there is a large distance between signalized intersections. Long distances between signals usually mean that the platoon starts to spread out too much and can no longer be seen as a defined group of cars. Cars are then gathered back into a group at the next signal (usually at a red light) and then sent out as a group again.

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1. What is Traffic Signal Coordination?
2. What is the best way/method for getting through the most signals without stopping?
3. Even if I drive at the speed limit I don’t seem to make it through all the lights. Why?
4. Which traffic signals are coordinated?
5. When are they coordinated?
6. Are signals coordinated in both directions?
7. Does coordination “break” at major intersections because the cross street volume is also very high?
8. Sometimes I have to wait almost 1-½ minutes (but can seem like 5 minutes) to get a green on a side street or a left turn even when there seems to gaps in traffic. Why?
9. Why don’t you coordinate all the time?
10. How do the signals operate when you don’t coordinate?