For design, the daily car, pickup truck, and light van traffic
is 20,000; and the daily truck traffic consists of 200 passes of
single-unit trucks with single and tandem axles, and 410 passes of
tractor semi-trailer trucks with single, tandem, and triple axles.
The axle weights are :cars, pickups, light vans = two 2000-lb
single axles;single-unit trucks = 10,000-lb steering, single axle=
22,000-lb drive, tandem axle and: tractor semi-trailer trucks =
12,000-lb steering, single axle,= 18,000-lb drive, tandem axle,=
50,000-lb...