An urban freeway is to be designed using the following information.

AADT $=51,200$ veh$/$day

K $($proportion of AADT occurring during the peak hour$)$: $0\mathrm{.}12$

D $($proportion of peak hour traffic traveling in the peak direction$)$: $0\mathrm{.}65$

Trucks: $8\%$ of peak hour volume

PHF $=0\mathrm{.}96$

Lane width: $12$ ft

Shoulder width: $10$ ft

Total ramp density: $0\mathrm{.}5$ interchange$/$mile; all interchanges are to be cloverleaf interchanges

Terrain: rolling

Determine the number of lanes in the peak direction required to provide LOS C$.($Assume commuter traffic and assume no RVs$.)$

lanes

Show all calculations required. $($Calculate your answers for the peak direction only. Enter fHV$,$ the peak hour volume in veh$/$h$,$ the free flow speed in mi$/$h$,$ the demand flow rate in pc$/$h$/$ln$,$ the mean speed in mi$/$h$,$ and the density in pc$/$mi$/$ln$.)$

fHV

peak hour volume

veh$/$h

free flow speed

mi$/$h

demand flow rate

pc$/$h$/$ln

mean speed

mi$/$h

density

pc$/$mi$/$ln