Question $(2)(3\mathrm{.}5$ points$)$

An undivided multilane highway segment has two $11-$ft lanes in the established direction with no shoulders and a $55mph$ speed limit$.$ This highway segment has $40$ access points on a $1\mathrm{.}25$ mile, $2\mathrm{.}5\%$ upgrade. During the highest $15$ minutes of traffic flow within the peak hour, there are $755$ vehicles and $12\%$ of these are heavy vehicles with a $70\frac{\%}{30}\%$ mix of single$-$unit and tractor trailer trucks.

What are the estimated speed, density and LOS of upgrade? $($Correct handwritten answer, no typed answers please$)$