1. School of Economics and Management, Chang’an University, Xi’an, People’s Republic of China
2. Department of Civil, Environmental and Geomatics Engineering, Freight Mobility Research Institute, Florida Atlantic University, Boca Raton, FL, USA
3. School of Economics and Management, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
4. School of Automation, Northwestern Polytechnical University, Xi’an, People’s Republic of China
5. Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA