Title
Automatic generation of fine-grained traffic load spectrum via fusion of weigh-in-motion and vehicle spatial-temporal information
Abstract
Obtaining accurate traffic loads is crucial for the assessment of bridges. The traffic load obtained by the current method is insufficient for the refined analysis of bridge structures. Herein, a fusion method is proposed to generate fine-grained traffic load spectra using weigh-in-motion data, video-based vehicle spatial-temporal information, and knowledge-based information of historical passing vehicles. Its effectiveness is tested on an interchange viaduct in Shaanxi, China. The average biases of the longitudinal and transverse locations of driving vehicles, which were identified using the proposed method, are 1.31 and 0.14 m, respectively. The identification accuracy in these two directions improved by 19% and 56%, respectively, compared with that of a pure deep learning-based video identification method. Meanwhile, the accuracy of identifying the axle number is 99.87%. Additionally, a fine-grained traffic load spectrum automatically generated with high accuracy is demonstrated. This method can be extended to other scenarios to further analyze and predict vehicle-related bridge performance.
Year
DOI
Venue
2022
10.1111/mice.12746
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
DocType
Volume
Issue
Journal
37
4
ISSN
Citations 
PageRank 
1093-9687
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Gan Yang100.34
Ping Wang21012.69
Wanshui Han301.01
Shizhi Chen400.34
Shuying Zhang500.34
Yangguang Yuan600.34