Traffic for a future roadway is projected to be AADT = 15000 vehicles. Vehicle distribution and the corresponding ESAL factors are given in Table 1. This is a 6-lane highway (3 lanes in each direction) with a directional distribution factor of 50%. 1. Using a growth factor of 3%, estimate traffic in the design lane, in ESALS, for a design life of 30 years. 2. The subgrade soil is a high plasticity clay (CH). The available base and sub base materials have R-Values of 75 and 50, respectively. Design a conventional flexible pavement structure using the 1993 AASHTO method. Clearly state all assumptions made.

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Traffic for a future roadway is projected to be AADT = 15000 vehicles. Vehicle distribution and the corresponding ESAL factors are given in Table 1. This is a 6-lane highway (3 lanes in each direction) with a directional distribution factor of 50%. 1. Using a growth factor of 3%, estimate traffic in the design lane,