A flexible pavement is designed with 5 inches of HMA wearing surface, 6 inches of hot-mix asphaltic base, and 10 inches of crushed stone subbase. All drainage coefficients are 1.0. Daily traffic is 200 passes of a 20- kip single axle, 200 passes of a 40-kip tandem axle, and 80 passes of a 22-kip single axle. If the initial minus the terminal PSI is 2.0 (the TSI is 2.5), the soil resilient modulus is 3000 lb/in2, and the overall standard deviation is 0.6, what is the probability (reliability) that this pavement will last 20 years before reaching its terminal serviceability?

A flexible pavement is designed with 5 inches of hot-mix asphalt (HMA) wearing surface, 6 inches of hot-mix asphaltic base, and 10 inches of crushed stone subbase. All drainage coefficients are 1.0. Daily traffic is 200 passes of a 20-kip single axle, 200 passes of a 40-kip tandem axle, and 80 passes of a 22-kip single axle.If the initial minus the terminal PSI is 2.0 (the TSI is 2.5), the soil resilient modulus is 3000 lb/in2, and the overall standard deviation is 0.6, what is the probability(reliability) that this pavement will last 20 years before reaching its terminal serviceability?

A flexible pavement was designed for the following daily traffic with a 12-year design life. The highway was designed with 4" of hot-mix wearing surface (0.44); 4" of hot-mix asphaltic base (0.40), and 8" of crushed stone base (0.11). Reliability was 70% (-0.524), overall standard deviation was 0.50. APSI = 2.0 (with TSI of 2.5), all drainage coefficients were 1.0. What was the CBR used in the design? 1300 passes single axdes at 8,000 lb each (0.03925) 900 passes tandem axles at 15,000 |b each (0.0431) 20 passes single axles at 40,000 lb, each (22.164) 200 passes tandem axles at 40,000 Ik each (2.0242) (APSI log10(W13) = Z,S, + 9.36 ( log10( SN + 1)) – 0.20 + 0.40 + logia 2.7 1094 [(SN + 1)15 + 2.32 log10(Ma)l- 8.07

A flexible pavement is to be constructed with a inches of sand-mix asphaltic wearing surface, b inches of emulsion/aggregate-bituminous base, c inches of crushed stone subbase. The base has a drainage coefficient of 0.90, while the subbase drainage coefficient is 1.0. What values of a, b, and c will NOT satisfy SN deign value of 4.1. О a. 5, 9, O b. 2, 9, О с. 5, 8, O d. 5, 7, О е. 3, 8, O f. 4, 7, O g. 4, 9, O h. 3, 9, O i. 3, 7, O j. 6, 8, and 9 and 9 and 9 and 9 and 10 and 10 and 9 and 10 and and 10 10