Extracted text: Consider the tabulated intersection design data below, then the number of vehicles stopped during the red interval for Phase EW is vehicles. Assume that Qs is 2000 about .............. vphpl and use Webster's method procedure. Qa (vph) Yellow All-red ts (sec) Lane 1 Lane 2 (sec) (sec) Phase N 500 600 2 2 3 Phase S 650 550 2 Phase EW 300 250 2 1 2 а. 13 b. 10 6. d. 8. C.