Phase$1$: NSL g$1=22\mathrm{.}4$s Phase$2$: NST$/$R g$2=32\mathrm{.}0$s Phase$3$: EWL g$3=27\mathrm{.}2$s Phase$4$: EWT$/$R g$4=38\mathrm{.}4.$ g$1,$g$2,$g$3,$g$4$ is effective green time. If the critical flow ratio for NST$/$R is $0\mathrm{.}20$ and the intersection is operating at the optimum cycle time. A$)$ calculate the cycle time B$)$ calculate the actual green time C$)$ draw the light sequence diagram. Inter$-$green oeriod I$=4$s Yellow time Y$=2$ sec