Figures (10)  Tables (8)

    • Figure 1. 

      The procedures and methods used in subway fire research.

    • Figure 2. 

      Year distribution map of subway fire research literature.

    • Figure 3. 

      National distribution map of the field of subway fires.

    • Figure 4. 

      Cooperative distribution of active countries in the field of subway fires.

    • Figure 5. 

      Collaboration diagram of major research institutions in the field of subway fires.

    • Figure 6. 

      Author cooperation network diagram.

    • Figure 7. 

      High co-citation literature cooperation network.

    • Figure 8. 

      Journal cooperation co-citation network.

    • Figure 9. 

      Keyword time axis view.

    • Figure 10. 

      The top 20 keywords with the strongest outbreak intensity in the field of subway fires.

    • No. Database Search range Period No. of articles
      1 Science Direct Title, abstract, or keywords 2008–2024 291
      2 Engineering Village Title, abstract, or subject 2008–2024 503
      3 Web of Science Topic (title, abstract, and indexing) 2008–2024 656

      Table 1. 

      Databases search status.

    • No. Search strategy Date set Search radar set record Period Data application
      1 TS = (metro) A 10,003 2008−2024 −
      2 TS = (subway) B 5,726 2008−2024 −
      3 TS = (railway) C 31,263 2008−2024 −
      4 TS = (fire) OR TS = (fire disaster) D 160,228 2008−2024 −
      5 TS = (metro) OR TS = (subway) OR TS = (railway) A∪B∪C 44,609 2008−2024 −
      6 (TS = (fire) OR TS = (fire disaster)) AND (TS = (metro) OR
      TS = (subway) OR TS = (railway))      		 (A∪B∪C)∩D 656 2008−2024 Time distribution of literature
      7 (TS = (fire) OR TS = (fire disaster)) AND (TS = (metro) OR
      TS = (subway) OR TS = (railway))      		 (A∪B∪C)∩D 575 2013−2024 Spatial distribution of literature
      Research knowledge base
      Research hotspots and frontier analysis
      A∪B: The data set contains all the literature in A or B; A∩B: Data sets containing A and B.

      Table 2. 

      WOS database retrieval strategy.

    • No. Country Region Number of publications Proportion Total link strength Total citations Average cited times
      1 China East Asia 353 49.93% 89 6,397 18.02
      2 USA North America 59 8.35% 30 1,382 23.42
      3 Australia Australia 31 4.38% 24 954 30.77
      4 UK Western Europe 28 3.96% 21 346 15.65
      5 Canada North America 23 3.25% 14 665 28.91
      6 South Korea East Asia 18 2.55% 1 90 5.00
      7 Spain Western Europe 16 2.26% 10 267 16.69
      8 Sweden Nordic 16 2.26% 12 424 26.50
      9 Germany Western Europe 14 1.98% 9 199 14.21
      10 France Western Europe 13 1.84% 5 244 18.77

      Table 3. 

      The top 10 countries in the field of subway fires from 2013 to 2024.

    • No. Institution Country Total number of connections Number of publications Total citations Average cited times
      1 University of Science and Technology of China China 34 37 952 25.7
      2 Southwest Jiaotong University China 8 29 338 11.7
      3 Tsinghua University China 25 29 675 23.3
      4 Chongqing University China 26 25 666 26.6
      5 Central South University China 8 21 264 12.6
      6 Nanjing Tech University China 5 17 224 13.2
      7 Beijing Jiaotong University China 3 16 213 13.3
      8 Beijing University Of Technology China 4 14 192 13.7
      9 Royal Melbourne Institute of Technlolgy (RMIT) University Australia 18 13 222 17.1
      10 China University of Mining & Technology China 6 11 92 8.4

      Table 4. 

      Top 10 research institutions in the field of subway fire.

    • No. Journal title Number of publications Average cited times Citation index 2023 impact factor Total link strength
      1 Tunnelling and Underground Space Technology 92 25.7 SCIE 6.7 642
      2 Case Studies in Thermal Engineering 16 11.1 SCIE 6.4 115
      3 Fire Technology 15 15.8 SCIE 2.3 112
      4 International Journal of Thermal Sciences 11 33.0 SCIE 4.9 131
      5 Applied Sciences-Basel 10 5.1 SCIE 2.5 44
      6 Fire and Materials 10 7.1 SCIE 2.0 69
      7 Fire-Switzerland 10 2.4 SCIE 3.0 57
      8 Safety Science 10 19.0 SCIE 4.7 92
      9 Sustainability 10 10.3 SSCI, SCIE 3.3 82
      10 Fire Safety Journal 9 14.2 SCIE 3.4 50

      Table 5. 

      Top 10 journals in the field of subway fire research from 2008 to 2024.

    • No. Institution Country Author(s) Quantity ACI TLS
      1 University of Science and Technology of China China Cheng, XuDong 20 27.7 86
      2 Chongqing University China Liu, Fang 19 30.9 53
      3 Tsinghua University China Zhong, MaoHua 18 19.2 53
      4 Royal Melbourne Institute of Technology China Shi, Long 14 22.8 61
      5 Chongqing University China Weng, MiaoCheng 14 18.2 40
      6 Nanjing Tech University China Jiang, JunCheng 13 14.2 30
      7 University of Science and Technology of China China Peng, Min 13 15.1 51
      8 Chongqing University China Wang, Fei 12 21.0 37
      9 Shanghai Maritime University China Zhang, ShaoGang 12 39.2 55
      10 University of Science and Technology of China China Cong, Wei 11 15.1 51

      Table 6. 

      2013−2024 top 10 authors in the field of subway fires.

    • No. STC Publication title Author(s) Journal title Year IN CN
      1 161 A study on the maximum temperature of ceiling jet induced by rectangular source fires in a tunnel using ceiling smoke extraction Tang, F, et al. International Journal of Thermal Sciences 2018 2 2
      2 135 Overview of research on fire safety in underground road and railway tunnels Li, YZ, et al. Tunnelling and Underground Space Technology 2018 1 1
      3 128 Smoke spread characteristics inside a tunnel with natural ventilation under a strong environmental wind Fan, CG, et al. Tunnelling and Underground Space Technology 2018 3 1
      4 107 Study on the critical velocity in a sloping tunnel fire under longitudinal ventilation Weng, MC, et al. Applied Thermal Engineering 2016 3 1
      5 97 Prediction of backlayering length and critical velocity in metro tunnel fires Weng, MC., et al. Tunnelling and Underground Space Technology 2015 3 1
      6 95 Do people follow the crowd in building emergency evacuation? A cross-cultural immersive virtual reality-based study Lin, J, et al. Advanced Engineering Informatics 2020 2 2
      7 94 Numerical investigation on the maximum ceiling temperature and longitudinal decay in a sealing tunnel fire Huang, YB, et al. Tunnelling and Underground Space Technology 2018 3 1
      8 90 An experimental study on critical velocity in sloping tunnel with longitudinal ventilation under fire Yi, L, et al. Tunnelling and Underground Space Technology 2014 3 1
      9 89 Numerical study on the optimization of smoke ventilation mode at the conjunction area between tunnel track and platform in emergency of a train fire at subway station Meng, N, et al. Tunnelling and Underground Space Technology 2014 1 1
      10 89 Simulation on fire emergency evacuation in special subway station based on Pathfinder Qin, JW, et al. Case Studies in Thermal Engineering 2020 1 1

      Table 7. 

      2013–2024 top 10 most cited papers in the field of subway fires.

    • No. Keyword Frequency of appearance Total number of connections
      1 Critical velocity 70 476
      2 Longitudinal ventilation 71 472
      3 Flow 84 470
      4 Tunnel fire 62 389
      5 Fire 93 358
      6 Simulation 81 351
      7 Temperature 42 239
      8 Subway tunnel 33 233
      9 Natural ventilation 36 228
      10 Tunnel 45 222
      11 Back-layering length 29 213
      12 Ventilation 48 211
      13 Metro tunnel 31 204
      14 Blockage 29 200
      15 Optimization 39 196
      16 Temperature distribution 31 196
      17 Back-layering length 24 195
      18 Movement 32 188
      19 Subway station 42 186
      20 Maximum temperature 27 183

      Table 8. 

      Top 20 key words in the field of subway fire research from 2013 to 2024.