Traffic on S.R. 224 was backed up for several miles in the 5 p.m. hour Tuesday, after UDOT lost connection with the adaptive traffic signals in Park City. The signals trigger the red, yellow and green traffic lights at intersections to adjust for traffic demand, so that when there’s more traffic going one way at an intersection, signal timing is adjusted to accommodate more cars. Park City Transportation Planning Manager Alfred Knotts says when UDOT lost connection to the adaptive signals, the traffic signals went back to giving each light an equal amount of run time.
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