a. A divided rural multi-lane highway with an AADT of 60,000 vehicles per day. The peak hour factor is set at 0.8 and the directional factor, D is estimated at 0.8. The highway is required to provide a Level of Service 'A'. Assuming the highway is to be designed for the thirtieth highest hourly volume during the year Calculate the number of lanes required in each direction Solve the precious question if the The lane width is 3.65 m wide. There are no obstructions within 1.83 m of the kerb and the percentages for the various heavy vehicle types are: PT =12%, PB =6%, and PR = 2%. Discuss the factors influencing highway design