Journal article
Evaluation of Accuracy of Weigh-In-Motion Systems in Alberta
International journal of pavement research & technology, Vol.7(3), pp.169-177
05/01/2014
Handle:
https://hdl.handle.net/2376/108159
Abstract
Weigh-In-Motion (WIM) systems can collect a variety of traffic data for moving vehicles. The accuracy of six piezoelectric WIM systems installed in Asphalt Concrete (AC) pavements at six highway locations in Alberta was investigated in a five-year verification experiment, which compared the WIM measurements to predetermined axle weights of a test truck. While the WIM systems accurately characterized the speed and dimensions of the test truck, 56, 43, 37, and 34 percent of their weight measurements for single steering, tandem drive and load axles, and Gross Vehicle Weight (GVW), respectively did not comply with the American Society for Testing and Materials (ASTM) E1318 requirements. Outlier analysis revealed that an error limit of 50 percent can be considered as the threshold for the WIM random errors. Mechanistic Empirical Pavement Deign Guide (MEPDG) was used to investigate the effect of the WIM errors in measuring the test truck's axle weights on flexible pavement design for a typical section in Alberta. While WIM errors in the range of ±20 and ±30 (corresponding to the majority of WIM errors in Alberta) did not affect the AC design, error magnitudes of ±50 and ±100 percent affected the AC thickness by more than 100 percent.
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Details
- Title
- Evaluation of Accuracy of Weigh-In-Motion Systems in Alberta
- Creators
- Naser FarkhidehSomayeh NassiriAlireza Bayat
- Publication Details
- International journal of pavement research & technology, Vol.7(3), pp.169-177
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Springer Nature B.V; Jhongli City
- Identifiers
- 99900547199601842
- Language
- English
- Resource Type
- Journal article