[shagie]

The paper for this is: On Traffic Light Control of Regular Towns by Elina Mancinelli, Guy Cohen, Stéphane Gaubert, Jean-Pierre Quadrat, Edmundo Rofman

https://www.researchgate.net/publication/281356849_On_Traffi... where you have nice (or almost) nice regular blocks with a constant speed. When you start deviating from this, the math all breaks down.

The ideal case would be to pulse the traffic such that given a certain amount of traffic flow and everyone following the proper speed limit that the time it takes for the traffic pulse to get to the next traffic light is green (and the pulse can continue).

This can be seen when you switch from one traffic light synchronization district to another - and hitting a traffic light.

There's a stretch on my commute where when I follow the speed limit (its 25 in this segment), I can go from one end of the traffic district to the next without ever hitting a red light (about 15 blocks).

The thing is that if the traffic isn't pulsed, then the spot where it changes from one traffic district to the next backs up significantly and causes other backups further down traffic.