United States Department of Transportation
i
Estimation of the demand for commercial truck parking on interstate highways in Virginia
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2003-01-01
[PDF-403.38 KB]
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Edition:Final report
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Abstract:The steady growth of commercial truck traveling on most Interstate and primary highways has resulted in increasing demand for both public rest areas and private truck stops in Virginia. In addition, inadequate parking spaces for commercial trucks may be a contributing factor to driver fatigue and the unsafe practices of parking commercial trucks on highway shoulders and interchange ramps. This study developed a methodology to determine the supply and demand for commercial truck parking along highway system. In this study, supply was defined as the number of parking spaces available for commercial truck parking, and demand was defined as the sum of the parking accumulation and the illegal parking at a given time.
A two-phase research project on the Supply And Demand For Commercial Truck Parking Facilities in Virginia has been carried out to evaluate truck driver parking needs. Phase one of this study developed a methodology to determine the supply and demand for commercial truck parking using Interstate-81 in Virginia as a case study. Phase two
expanded the study to other Interstate and primary highways in Virginia, checked the applicability of the parking demand model developed in phase one and developed new models for the other highways in Virginia.
Extensive data on the characteristics of commercial truck parking including parking duration and accumulation for different times of day were obtained. Detailed information was also obtained on the characteristics of each truck stop and rest area, including the location, number and types of parking spaces, and availability of other
amenities, such as restaurants and showers. Two types of questionnaire surveys were conducted. The first survey involved truck drivers, and the second survey involved truck stop managers/owners. The survey data were used to develop models to describe the relationship between parking accumulation and independent variables such as traffic
volume on the highway, truck percentage, parking duration, and the distance from a highway to a truck stop. After testing the applicability of the models, they were then used to estimate commercial truck parking demand in 2010 and 2020. Deficiencies of
parking spaces in supply with respect to the estimated demand were then determined for each truck stop and the entire highway system.
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