Browsing Upper Great Plains Transportation Institute (UGPTI) by Author "Zhang, Zhiming"
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Road Profile Reconstruction Using Connected Vehicle Responses and Wavelet Analysis
Zhang, Zhiming; Sun, Chao; Bridgelall, Raj; Sun, Mingxuan (2018)Practitioners analyze the elevation profile of a roadway to detect localized defects and to produce the international roughness index. The prevailing method of measuring road profiles uses a specially instrumented vehicle ... -
Road Roughness Evaluation Using In-Pavement Strain Sensors
Zhang, Zhiming; Deng, Fodan; Huang, Ying; Bridgelall, Raj (2015)The international roughness index (IRI) is a characterization of road roughness or ride quality that transportation agencies most often report. The prevalent method of acquiring IRI data requires instrumented vehicles and ... -
Vehicle Axle Detection from Under-Sampled Signal through Compressed-Sensing-Based Signal Recovery
Zhang, Zhiming; Huang, Ying; Bridgelall, Raj (2022)In traffic data collection, sampling design should satisfy the requirements of identifying prominent pulses corresponding to vehicle axle passage. Insufficient measurement leads to signal distortion and attenuation, reducing ...