• determine structural number
You should design a roadway that is to carry 100,000 people aday
(excluding truck occupants) 50,000 in design direction. Thevehicles that
carry these people include; (1) personal vehicles (averageoccupancy of 1.5
people per car) 2 2 kip single axles, and (2) buses with 2 24 kipsingle axles
(assume they are filled with an average of 40 passengers). Thereare also
trucks on the roadway and all trucks have 1 40 kip triple axle, 134 kip
tandem axle, and 1 8 kip single axle. You know that the soil CBR is8. the
initial PSI is 4.5 and the TSI is 2.5. Other values to beused:
•
All drainage coefficients = 1.0
•
Reliability = 90%
•
Overall standard deviation of traffic = 0.50
