Question

A two-way nural 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 opening road ( in both directions) with a 60/40 percent expected traffic loading on directional distribution would be as in the table below:- Axle Load (tonnes) 11.79 12.70 6.35 7.26 8.16 9.07 9.98 10.89 No. of axles expected in both 316 246 340 32 197 108 76 20 directions per day 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.

Answer 1

Shewam Shivam (2 ey Rurad Reud (Upp 14 0449 6009 CBR=10 1-75P a2 BR m So O Tem y.CBR SE mSA CUPD 2 CNPD(y34A Y P PliaerdX(ohaaochon Reroj Dedign pasuod 20200 euPD 865(tt Par Jam stondogtd axer ead 2wheae acd fast 846 toho EDP A 2 4 6 20