Determine if protected left$-$turn phases should be provided for any of the approaches

b$)$ Calculate the sum of the flow ratios for the critical lane groups

c$)$ Calculate the minimum cycle length $($assuming $92\%$ capacity utilization$($Xc$))$

d$)$ Calculate the optimal cycle length

e$)$ Calculate the effective green times for each phase for optimal cycle

f$)$ Calculate the displayed yellow and all$-$red times for each phase

g$)$ Calculate the required pedestrian green times