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Sick of Red Lights
Posted on Monday, March 04, 2002 - 09:56 pm:   

You know how many of Plano's lights start blinking yellow at a certain time at night when traffic dies down? Why can't we do that in Frisco? It'd make the Preston flow much easier. The 1 or 2 people coming out of the mall on, say, Mallroad A for example, would have to wait 2 additional seconds until you pass and then they can turn onto Preston right behind you. You didn't have to stop for them, and they had to slow down to make their turn onto Preston anyway. Just a thought. Sign me Sick of Red Lights.

Brian Moen (Brian)
Posted on Monday, March 11, 2002 - 10:14 am:   

The decision to flash traffic signals late at night is really a liability decision. Some of the factors that are considered are sight distance, roadway speeds, functionality of traffic detection equipment, presence of emergency preemption equipment, location of nearby alcohol establishments, and traffic volumes among others.

Our current policy is to not flash signals within Frisco during late night hours. The detection on the minor street approaches is functioning and it makes it safer and easier for our emergency vehicles when they preempt the traffic signal. Depending on the signal controller used at the intersection, we do try delay the side street for 5 to 15 seconds before the traffic signal acknowledges the presence of the waiting vehicle.

Brian Moen
Traffic Engineer

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