Laboratory;
of;
Traffic;
Safety;
on;
Track;
of;
Ministry;
of;
Education;
(School;
of;
Traffic;
and;
Transportation;
Engineering,;
Central;
South;
University),;
Changsha;
410075,;
China;
of;
Transportation;
and;
Logistics,;
Central;
South;
University;
of;
Forestry;
and;
Technology,;
Changsha;
410004,;
China;