Question

For the design of a highway with flexible pavement as per IRC 37, the following information is collected.
Present traffic= 2000 cvpd
Period of construction 2 year; VDF= 2.5 and LDF = 1
Assuming the traffic growth rate as 8.00% per year, the cumulative number of standard axle repetitions (in msa) for a design life of 25 years is

Answer 1

Present traffic = 2000 cvpd
$\text{Traffic after the completion of construction}=2000(1+0.08{)}^2$
$=2332.8cvpd$
$\text{Cumulative standard axles}=\frac{365\left[\right(1+0.08{)}^{25}-1]}{0.08}\times 2332.8\times 2.5\times 1$
$=155.62msa$