In a traffic investigation, the total number of trucks weighed is 117. The detailed axle load information for these 235 trucks is listed in the table below. a- What is the average number of axles per truck? b- Calculate the truck factor for an asphalt pavement (assume Pt=2.5 and SN=5) If the initial design year ADT is 4,000, truck percentage is 20%, traffic annual growth rate is 2%, for an asphalt pavement (assume Pt-2.5 and SN=5) with two lanes in each direction, if the design period is 20 years, calculate the design ESALS. Axle Load (lb) Single Axles Tandem Axles Tridem Axles wwwwww 9000 12000 18000 20000 22000 20000 24000 26000 30000 30000 34000 38000 Number of axles 6 16 264 30 10 36 64 42 24 20 28 44
In a traffic investigation, the total number of trucks weighed is 117. The detailed axle load information for these 235 trucks is listed in the table below. a- What is the average number of axles per truck? b- Calculate the truck factor for an asphalt pavement (assume Pt=2.5 and SN=5) If the initial design year ADT is 4,000, truck percentage is 20%, traffic annual growth rate is 2%, for an asphalt pavement (assume Pt-2.5 and SN=5) with two lanes in each direction, if the design period is 20 years, calculate the design ESALS. Axle Load (lb) Single Axles Tandem Axles Tridem Axles wwwwww 9000 12000 18000 20000 22000 20000 24000 26000 30000 30000 34000 38000 Number of axles 6 16 264 30 10 36 64 42 24 20 28 44
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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