Problem $3.(20$ points$)$ A section of a freeway has the following properties in the design direction: two

lanes, peak hour traffic volume $=2400ve\frac{h}{h},PHF=0\mathrm{.}88,12ft$ wide lanes, $5ft$ wide lateral clearance.

The section is on a rolling terrain, carries $12\%$ trucks and $1\%$ RVs$.$ There are $8$ interchanges in $20$ miles

length of the section. Calculate the following using the Highway Capacity Manual.

$($a$)$ Free flow speed.

$($b$)$ Heavy vehicle adjustment factor.

$($c$)$ Peak design flow rate.

$($d$)$ Average traffic speed.

$($e$)$ Level of service of the section.Please do not use Chet gpt otherwise I will give you $10$ dislike.