Data from: Performance-based Egress safety assessment of underground tunnels: Simulation and artificial neural network approaches
Data files
Nov 10, 2025 version files 445.39 KB
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egress_simulation_data.zip
426.58 KB
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fire_simulation(fds).zip
15.85 KB
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README.md
2.96 KB
Abstract
In this study, an Artificial Neural Network (ANN) model was proposed to evaluate the egress safety of underground tunnels during fire. Fire simulations were carried out using the Fire Dynamics Simulator (FDS) for underground tunnels with a general cross-section, considering fire size as a key variable. Additionally, egress simulations were performed using Pathfinder, with the spacing of cross-passage and the width of fire doors set as variables. Through this process, the available safe egress time (ASET), required safe egress time (RSET), and the number of casualties were derived for each variable, and the egress safety characteristics of underground tunnels under various parameter combinations were analyzed in detail. Based on the derived data, an Artificial Neural Network (ANN) model was developed to derive the ASET, RSET, and survival rate in underground tunnels during fire incidents. The proposed ANN model is expected to efficiently evaluate the egress safety of underground tunnels with general dimensions without the need to perform additional fire and egress simulations.
Dataset DOI: 10.5061/dryad.cnp5hqchk
Description:
This dataset contains (i) FDS input/output for tunnel fire scenarios and (ii) egress result files exported from Pathfinder in open, tabular text form. All files are directly reusable for replication and secondary analysis.
Contents:
- fire_simulation(fds).zip
- Includes
tunnel_fire.fds(FDS input) And related result texts (e.g., temperature/visibility/gas concentration by location and time).
- Includes
- egress_simulation_data.zip
- Open text outputs exported from Pathfinder (no proprietary
.pth). - Files are plain
.txtthat can be opened in any spreadsheet editor. - Filenames encode scenario parameters, e.g.
100m_1104_10m_summary.txt,..._performance.txt.
- Open text outputs exported from Pathfinder (no proprietary
Software Requirements:
- Fire Dynamics Simulator (FDS) v6.7.7 or later (NIST) for re-running fire simulations.
- No proprietary software is required to read the egress data (plain text).
Instructions:
- Fire: run
fds tunnel_fire.fdsfrom a command line insidefire_simulation(fds).zip. - Egress: open the
.txtfiles inegress_simulation_data.zipwith Excel/LibreOffice/R/Python, etc. Column headers and scenario names are self-descriptive.
License:
CC0 1.0 Public Domain — The authors waive all copyright and related rights to this dataset.
Contact:
Corresponding author: Prof. Seung-Ho Choi
Email: ssarmilmil@uos.ac.kr
University of Seoul, Republic of Korea
Files and variables
File Name
Description
fire_simulation(fds).zip
Fire simulation data for tunnel scenarios, including temperature, visibility, and gas concentration results.
egress_simulation_data.zip
Evacuation simulation data for tunnel scenarios, including ASET, RSET, and survival rate results.
Each text file corresponds to a specific simulation scenario, with filenames indicating fire size and cross-passage spacing.
For example, 100m_1104_10m_summary.txt represents summary results for a 10 m cross-passage spacing case.
Code/software
This dataset includes simulation input files that require the following software environments:
Fire Dynamics Simulator (FDS)
- Version: 6.7.7 or later
- Developer: NIST
- Usage: Run via command line —
fds tunnel_fire.fds - Website: https://pages.nist.gov/fds-smv/
No additional scripts or custom code are included. All files are executable within the specified software environments.
Access information
Other publicly accessible locations of the data: None. This dataset is available exclusively through Dryad.
Data was derived from the following sources: All data were generated by the authors using Fire Dynamics Simulator (FDS) and Pathfinder software. No external or third-party data was used.