Question $2.(1\mathrm{.}0$ point$)$

Answer to questions a$-$c based on the following information at a signalized intersection. Assume reasonably when necessary. Pay attention to the following points:

$-$ Speed limit on each direction $\backslash (=40\backslash$mathrm$\{$mph$\}\backslash )$

$-$ Use the following headway graph to estimate saturation flow of right turn and through traffic lanes. $($All approaches have the following headway graph$)$

$-$ Use the same headway graph $($above$)$ to estimate start$-$up lost time.

a$.$ Design the signal phasing plan based on your available data. What type of left$-$turn phasing do you select? Why?

b$.$ Estimate Saturation Flow Rate for right turn and through lanes.

c$.$ Estimate Total Lost Time in the cycle.

d$.$ Estimate Yellow and All$-$red intervals.