$2$eve pts$)$: $($COO: $100\%)$

Given:

Gireen time $=32$ s $($for bodh phases$)$

Yellow time $=2$s

All$-$red time$-$I s

Clearance losa time $=2$ s

Startap lost time $=2\mathrm{.}5$ s

Discharge headway $=2$ s

Lane width $=3\mathrm{.}6m$

$1800z^{}$

ne$.$

Ne$!$

a$.$ Determine the optimal cysle length. Please show your calcularioni and comment on your answer, $(7$ per$)$

$\{\begin{array}{c}\text{:}6=\frac{15L+5}{1-C_t}=10\mathrm{.}17\end{array}$

b$.$ Is the current signal phasing plan safe for pedeutrian for the two phases? Show your calculation. $(6$ pts$)$

c$.$ At what seconds of zreen does the "Don't Walk Flashing" start for the two phases? $(7$ pts$)$

d$.$ Axsume the cycle length is $70s$ draw the signalization stripes, showing the time for each interval for bod approaches along with "Walk" and "Don't Walk" flaching. $(5$ pts$)$

Pedestrian A

Vehicles $B$

Pedestrian B