TRUCK WEIGHTS AS RELATED TO PAVEMENT DESIGN IN ALABAMA

The number of trucks, truck axle weights and lane usage were measured at ten weigh-in-motion sites in Alabama. From this data, the truck distribution factor defined as the average number of equivalent 18k axle loads per truck was determined for purposes of both rigid and flexible pavement design for each site and for all sites combined. The total traffic count and percent trucks was determined. The percent trucks using the outside lane was computed for each four lane site. The results indicate that the truck distribution factors previously used for pavement design in Alabama were too low. Updated factors were adopted for use. The results also indicates that the lane distribution factor for the design lane of a four lane facility should be at least 85 percent. (Author)

• Corporate Authors:

  Alabama State Highway Department

  Bureau of Materials and Tests, 1409 Coliseum Blvd
  Montgomery, AL  United States  36130

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Publication Date: 1983-6

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: 63 p.

Subject/Index Terms

• TRT Terms: Axle load force; Flexible pavements; Lane distribution; Pavement design; Rigid pavements; Trucks; Trucks by weight; Weight
• Subject Areas: Design; Highways; Motor Carriers; Operations and Traffic Management; Pavements; I22: Design of Pavements, Railways and Guideways; I71: Traffic Theory;

Filing Info

• Accession Number: 00389038
• Record Type: Publication
• Report/Paper Numbers: FHWA-AL-83-96 Final Rpt.
• Contract Numbers: 930-106
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Oct 30 1984 12:00AM