In: Civil Engineering
3. For a dual carriageway new road scheme, the average annual daily flow (AADT) of one way traffic is 24,000; 2% are commercial vehicles. No channelisation is expected to occur. Design a foundation and bound layers of a pavement. The subgrade surface modulus = 40mpa = 4%CBR. State any assumptions made, including the choice of design method and sketch a cross section of the final pavement design.
(N.B. there are hundreds of potentially correct designs depending on the choices of design methods and materials. Any submissions that include identical designs may be investigate for potential collusion).