The modeling of how visibility ranges can affect the fire evacuation in modern buildings
In the past research, wherever an occupant is in the compartment, he is always able to see the exit signs clearly and escape during emergency. This assumption is not realistic when the compartment concerned is filled with smoke. In order to simulate the group behavior of occupants, a rule termed “fl...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/39822 |
| _version_ | 1826126465778843648 |
|---|---|
| author | Hong, Chang Bin. |
| author2 | Tan Kang Hai |
| author_facet | Tan Kang Hai Hong, Chang Bin. |
| author_sort | Hong, Chang Bin. |
| collection | NTU |
| description | In the past research, wherever an occupant is in the compartment, he is always able to see the exit signs clearly and escape during emergency. This assumption is not realistic when the compartment concerned is filled with smoke. In order to simulate the group behavior of occupants, a rule termed “flow with the stream” is introduced in this final year project. Basically, this rule stipulates that the movement of an individual occupant will be limited byr low visibility conditions and guided by friends and family members who are in groups.
The proposed CA model takes account of human behavior, tenability analysis and average
movement velocity. A simple experiment was conducted to find the average velocity of different age groups walking and running on flat ground. The experimental details are attached in Appendix A.
In the numerical example, the phenomenon of “flow with the stream” is simulated. The results
indicate that the different visibility ranges can affect an evacuation process significantly. It shows that when the visibility range is better, it will result in a higher evacuation rate. It also shows that as the number of guides (those who are familiar with the location of exits) increases, the rate of evacuation is improved.
Currently, this CA model is used in emergency evacuation/fire safety assessments to draw comparisons between different designs of evacuation schemes. For future improvement, it is certain that real tests in a smoke-filled environment whereby visibility and evacuation velocity can be determined will allow the proposed CA model to realistically simulate evacuation process. Hence, collecting experimental data should be one of the most important future works. |
| first_indexed | 2024-10-01T06:53:04Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/39822 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:53:04Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/398222023-03-03T17:07:02Z The modeling of how visibility ranges can affect the fire evacuation in modern buildings Hong, Chang Bin. Tan Kang Hai School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering In the past research, wherever an occupant is in the compartment, he is always able to see the exit signs clearly and escape during emergency. This assumption is not realistic when the compartment concerned is filled with smoke. In order to simulate the group behavior of occupants, a rule termed “flow with the stream” is introduced in this final year project. Basically, this rule stipulates that the movement of an individual occupant will be limited byr low visibility conditions and guided by friends and family members who are in groups. The proposed CA model takes account of human behavior, tenability analysis and average movement velocity. A simple experiment was conducted to find the average velocity of different age groups walking and running on flat ground. The experimental details are attached in Appendix A. In the numerical example, the phenomenon of “flow with the stream” is simulated. The results indicate that the different visibility ranges can affect an evacuation process significantly. It shows that when the visibility range is better, it will result in a higher evacuation rate. It also shows that as the number of guides (those who are familiar with the location of exits) increases, the rate of evacuation is improved. Currently, this CA model is used in emergency evacuation/fire safety assessments to draw comparisons between different designs of evacuation schemes. For future improvement, it is certain that real tests in a smoke-filled environment whereby visibility and evacuation velocity can be determined will allow the proposed CA model to realistically simulate evacuation process. Hence, collecting experimental data should be one of the most important future works. Bachelor of Science (Maritime Studies) 2010-06-04T07:28:46Z 2010-06-04T07:28:46Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/39822 en Nanyang Technological University 54 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering Hong, Chang Bin. The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title | The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title_full | The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title_fullStr | The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title_full_unstemmed | The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title_short | The modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| title_sort | modeling of how visibility ranges can affect the fire evacuation in modern buildings |
| topic | DRNTU::Engineering::Civil engineering |
| url | http://hdl.handle.net/10356/39822 |
| work_keys_str_mv | AT hongchangbin themodelingofhowvisibilityrangescanaffectthefireevacuationinmodernbuildings AT hongchangbin modelingofhowvisibilityrangescanaffectthefireevacuationinmodernbuildings |