1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
2. School of Architecture and Planning, Anhui Jianzhu University, Hefei 230601, China
3. Public Utility Service Center, Shantou Integrated Free Trade Zone, Shantou 515071, China
4. School of Urban and Regional Science, East China Normal University, Shanghai 200062, China