Research Article
Nov 1975
Acquiring Traffic Data by In-Motion Weighing
Publication: Transportation Engineering Journal of ASCE
Volume 101, Issue 4
Abstract
The need for quantitative information about highway vehicle weights has historically been fulfilled through static weighing operations. An electronic weighing system referred to as weigh-in-motion (WIM) has been developed which obtains wheel weights, axle spacing, and speed of vehicles operating in a normal traffic stream. The accuracy of the WIM system has been evaluated in a statistically designed field experiment. The experiment consisted of comparing wheel weights measured by wheel-load weighers, platform scales, and the in-motion weighing system. The experiment utilized a variety of vehicles representing several different vehicular classes and a number of different vehicular loads. The possible effects of vehicular speed and pavement profile were also examined. The study indicates that the in-motion weighing technique can provide adequate static weight, speed, and classification data for traffic survey purposes without the need for specially constructed weighing sites. All hazards to traffic and survey personnel would be eliminated without any delay and expense to the road user.
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Information & Authors
Information
Published In
Transportation Engineering Journal of ASCE
Volume 101 • Issue 4 • November 1975
Pages: 681 - 689
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Nov 1975
Published online: Feb 5, 2021
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Authors
Affiliations
R. B. Machemehl
Grad. Research Asst. and Doctoral Candidate, Dept. of Civ. Engrg., The Univ. of Texas at Austin. Austin, Tex.
C. Michael Walton, AM.ASCE
Asst. Prof. of Civ. Engrg., The Univ. of Texas at Austin, Austin, Tex.
Clyde E. Lee, M.ASCE
Prof. of Civ. Engrg. and Dir., Center for Highway Research, The Univ. of Texas at Austin, Austin, Tex.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.