A rigid pavement is designed with an 11-inch slab thickness, 90% reliability, Ec = 4 million lb/in2, modulus of rupture of 600 lb/in2, modulus of subgrade reaction of 150 lb/in3, a 2.8 load transfer coefficient, initial PSI of 4.8, final PSI of 2.5, overall standard deviation of 0.35, and a drainage coefficient of 0.8.
The pavement has a 20-year design life. The pavement has three lanes and is conservatively designed for trucks that have one 20,000- lb single axle, one 26,000-lb tandem axle, and one 34,000-lb triple axle. What is the daily estimated truck traffic on the three lanes?