Given the following data: design life n = 15 years lane distribution factor D = 0.75 annual rate of growth

Q. Given the following data: design life n = 15 years, lane distribution factor D = 0.75, annual rate of growth of commercial vehicles r = 6%, vehicle damage factor F = 4 and initial traffic in the year of completion of construction = 3000 Commercial Vehicles Per Day (CVPD). As per IRC:37-2012, the design traffic in terms of cumulative number of standard axles (in million standard axles, up to two decimal places) is

Ans: 75 – 78

Sol:

Design life, n = 15 years
Lane distribution factor, D = 0.75
Annual growth rate of commercial vehicles, r = 6% = 0.06
Vehicle damage factor , F = 4
Initial traffic in the year of completion of construction, A = 3000