DOI: 10.5061/dryad.cnp5hqchk
title: Data from: Performance-based Egress safety assessment of underground tunnels: Simulation and artificial neural network approaches

description: 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.
description: # Data from: Performance-based Egress safety assessment of underground
 tunnels: Simulation and artificial neural network approaches Dataset DOI:
 [10.5061/dryad.cnp5hqchk](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). * **egress_simulation_data.zip** *
 Open text outputs exported from Pathfinder (no proprietary `.pth`). *
 Files are plain `.txt` that can be opened in any spreadsheet editor. *
 Filenames encode scenario parameters, e.g. `100m_1104_10m_summary.txt`,
 `..._performance.txt`. **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.fds` from a command line
 inside `fire_simulation(fds).zip`. * Egress: open the `.txt` files in
 `egress_simulation_data.zip` with 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](mailto: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/](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.