- 问题详情:ThetrafficsignalsalongFactoriaBoulevardinBellevue,Washington,generallydon'tflashthesamelengthofgreentwiceinarow,especiallyatrushhour.At9:30am,thefullred/yellow/greensignalcyclemightbe140seconds.By9:33am,aburstofadditionaltrafficmightpushitto...
- 7287