$(5$ pts$)$ For the intersection from Assignment #$3$ Q$3($ignoring pedestrian movements$),$ assume a baseline condition where there$$s a $90$ s cycle with phase timings of $18/2/1($G$/$y$/$ar$)$ for the EB$/$WB$-$L$,30/3/2$ for EB$/$WB$-$TR$,$ and $29/3/2$ for NB$/$SB$-$LTR$.$ Assume arrival type $3$ on all approaches, $12-$ft wide lanes, $10\%$ trucks in NB$/$SB and $5\%$ trucks on EB$/$WB$,0\%$ grade for all, $20$ parking maneuvers$/$hr along EB$/$WB$,$ and $15$ bus stops per hour along NB$/$SB$.$ Flows are evenly distributed across lanes. Located in CBD$.$

$($a$)$ Determine the effective greens for each phase.

$($b$)$ Determine the control delays $($d$1,$ d$2)$ and LOS for each lane group, approach, and overall intersection.

$($c$)$ Now consider a $120$ s cycle instead $($keep y$/$ar times the same and proportionately increase all the G times$).$ Compare the LOS and delay.

$($d$)$ For the base condition, what one change would you recommend that would most improve the intersection performance $($no changes to arrival type$).$