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中南大学学报(英文版)

Journal of Central South University

Vol. 28    No. 8    August 2021

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Application of signal processing and support vector machine to transverse cracking detection in asphalt pavement
YANG Qun(杨群)1, ZHOU Shi-shi(周师师)1, WANG Ping(王屏)1, ZHANG Jun(张俊)2

1. Key Laboratory of Road and Traffic Engineering (Ministry of Education), Tongji University,
Shanghai 201804, China;
2. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China

Abstract:Vibration-based pavement condition (roughness and obvious anomalies) monitoring has been expanding in road engineering. However, the indistinctive transverse cracking has hardly been considered. Therefore, a vehicle-based novel method is proposed for detecting the transverse cracking through signal processing techniques and support vector machine (SVM). The vibration signals of the car traveling on the transverse-cracked and the crack-free sections were subjected to signal processing in time domain, frequency domain and wavelet domain, aiming to find indices that can discriminate vibration signal between the cracked and uncracked section. These indices were used to form 8 SVM models. The model with the highest accuracy and F1-measure was preferred, consisting of features including vehicle speed, range, relative standard deviation, maximum Fourier coefficient, and wavelet coefficient. Therefore, a crack and crack-free classifier was developed. Then its feasibility was investigated by 2292 pavement sections. The detection accuracy and F1-measure are 97.25% and 85.25%, respectively. The cracking detection approach proposed in this paper and the smartphone-based detection method for IRI and other distress may form a comprehensive pavement condition survey system.

 

Key words: asphalt pavement; transverse crack detection; vehicle vibration; support vector machine; classification model

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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