LOS Example $($Freeway$)$

A segment of $4-$lane urban freeway $($two lanes per direction$)$ has a $3\mathrm{.}2\%$ upgrade that is $1500ft$ long followed by a $1000ft4\%$ grade. It has $12-ft$ lanes and $3-ft$ shoulder. The directional hourly traffic flow is $2000$ vehicles with $5\%$ large trucks and buses $($no recreational vehicles$).$ The total ramp density for this freeway segment is $2\mathrm{.}33$ ramps per mile. If the peak hour factor is $0\mathrm{.}9$ and all the drivers are regular users, what is the level of service of this compound grade freeway segment?