Funding for this research was provided by:
National Natural Science Foundation of China (No. 71871012)
State Key Lab of Rail Traffic Control and Safety (No. RCS2020ZT005)
Article History
Accepted: 17 March 2022
First Online: 11 April 2022
Declarations
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.