A long section of undivided multilane highway is to be designed on level terrain. A level section of 8.5 km is, however. Followed by a 5% grade, 3.2 km in length. If the DDHV is 3000 veh/h with 10% trucks and 3% OTERAA
RVs, how many lanes will be needed on the
a) Upgrade section.
b) Level terrain section.
To provide for a minimum of level of service C, Assume that base free flow speed is 9.0 km/h,the base condition of lane width and lateral clearance exist and access point density is 15 points/km, PHF = 0.92.