About the Authors

Xiaojuan Lu

Roles Conceptualization, Data curation, Funding acquisition, Methodology, Writing – original draft, Writing – review & editing

Affiliation School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou, China

Jiamei Zhang

Roles Methodology, Visualization, Writing – review & editing

Affiliation School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou, China

Qingling He

Roles Investigation, Methodology, Visualization, Writing – original draft, Writing – review & editing

qinglinghe@yeah.net

Affiliation School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou, China

Shiyu Zheng

Roles Conceptualization, Data curation, Visualization, Writing – review & editing

Affiliation College of Transportation Engineering, Chang’an University, Xi’an, China

Juan Su

Roles Funding acquisition, Supervision, Writing – review & editing

Affiliation School of Economics and Management, Qingdao Institute of Technology, Qingdao, China

Competing Interests

The authors have declared that no competing interests exist.