Title: Calibrating WIM Systems Through AVI Technology
Abstract: This paper describes a method for calibrating weigh-in-motion (WIM) systems by comparing static and dynamic weights of vehicles through automatic vehicle identification (AVI). The AVI facilities developed for the Heavy Vehicle Electronic License Plate (HELP) project on the 1-5 corridor was used for this purpose. The static axle load of AVI-equipped vehicles was obtained from the Oregon DOT for two sites, WIM load data from in-service 5-axle semitrailer trucks was obtained on the 1-5 corridor over a 6-month period. The data was analyzed to sort-out AVI numbers, dates and times of weighing. Errors were calculated as the percent difference between WIM and static loads for individual axles/axle groups. Calibration factors were derived to set the mean axle weigh error to zero. Software was written to handle all calculations.
Publication Year: 1997
Publication Date: 1997-06-01
Language: en
Type: article
Indexed In: ['crossref']
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