School of Public Administration;
South China University of Technology;
Guangzhou 510641;
Research Center of Local Risk Management;
South China University of Technology;
Guangzhou 510641;
School of Public Administration;
South China University of Technology;
Guangzhou 510641;
Research Center of Local Risk Management;
South China University of Technology;
Guangzhou 510641;
Institute of Public Safety;
Tsinghua University;
Beijing 100084;