Funding for this research was provided by:
United States Texas Department of Transportation (6784)
Natural Science Foundation of China (51808292)
Natural Science Foundation of Fujian, China (2020J01212259)
Article History
Received: 1 October 2020
Accepted: 11 December 2020
First Online: 20 January 2021
Conflict of interest
: The authors declare no competing interests.