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Prescott Valley Public Works explains how traffic signals, detection and pedestrian timing work
Summary
Prescott Valley Public Works staff explained how decisions on left‑turn phasing, vehicle detection and pedestrian crossing times are made, cited FHWA/MUTCD guidance and described upgrades (video detection on Glassford, audible pushbuttons) to improve safety and accessibility.
On the town’s PV in Focus podcast, Prescott Valley Public Works staff described how traffic signals are timed, how intersections detect vehicles and how pedestrian crossing times are set and adjusted.
Parker Murphy, the town’s traffic engineer, said pedestrian timing follows federal guidance: “there’s a set 7‑second that it shows the walk and then it gives you the countdown,” and the countdown is based on crossing distance divided by 3.5 feet per second under ADA and PROWAG. That 3.5 ft/s standard is used to compute the countdown timing, and staff said they can increase the crossing time where accessibility or demand requires it.
The explanation matters for drivers and pedestrians because signal decisions change how traffic flows and how long people have to cross streets. Jake Hanley, a member of Prescott Valley Public Works who oversees…
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