000186 00186 A two-way rural road passing through varying terrain with subgrade soil of CBR of 10 is proposed to be designed to bitumen standard. Axle load surveys indicate that expected traffic loading on opening road (in both directions) with a 60/40 percent directional distribution would be as in the table below:- 6.35 7.26 8.16 9.07 9.98 10.89 11.79 12.70 246 197 108 76 Axle Load (tonnes) No. of axles expected in both 340 316 directions per day 32 20 Historical traffic data indicate an annual traffic growth rate of 5%. Determine the pavement structure for this road section for a design period of 20 years using RN 29 design criteria.