Lane-distribution factors for design. Final report, September 1984-July 1987

Technical Report · Wed Jul 01 04:00:00 EDT 1987

OSTI ID:6804041

Cunagin, W D

The report gives details of the results of a survey of truck-lane distribution on Interstate 4-lane, 6-lane, and 8-lane highways and in urban and rural Texas settings. A summary information is presented in the report and compared with current design practice in Texas, recommendations in the current AASHTO pavement design guide, predictions from the NCHRP Report 277 equations for truck-lane distributions. Although the data are not extensive enough to warrant the development of new predictive equations, they do show significant deviations from the previous and current methods and indicate that even the NCHRP Report 277 equations are conservative when compared with Texas traffic conditions. The effects of travel direction, urban or rural environment, and percent trucks in the traffic stream appear to be a significant in altering the truck lane distributions.

• Research Organization: Texas A and M Univ., College Station (USA). Texas Transportation Inst.
• OSTI ID: 6804041
• Report Number(s): PB-88-218821/XAB; TTI-2-8-85-476-2F
• Country of Publication: United States
• Language: English

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