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У 72. A signalized intersection has Yc 0.72 and L=16 seconds. If Xc-0.925, is the Cmie? D A. 99 sec ch 18 B. 88 sec C. 92 sec D. 73 sec 73.) A signalized intersection has 4 phases. The y. are 0.15,0.19.0.21.0.17 for phases i=1 to 4. respectively. If C-108 seconds and L-16 seconds, what is g2? A A. 25 sec B. 23 sec C. 19 sec D. 21 sec 74. A signal phase i has 2 lane groups. Lane group 1 has a DHV of 305 pc/h and a saturation flow rate of 1620 pc/h. Lane group 2 has a DHV of 557 pc/h and a saturation flow rate of 3460 pc/h. What is the critical flow ratio of this phase yc.? A A. 0.188 B. 0.161 C.0.170 D. 0.349 »