대구도시철도 지하역사 화재경보 발생현황 분석

Abstract

In this paper, the fire alarm status of Daegu Subway Line 1 for 10 years from 2003 to 2007 and 2018 to 2022 was analyzed by internal factors (area of urban railway, time slot, and whether safety doors were installed on platforms) and external factors (monthly fire alarm, temperature and humidity, weather, and fine dust concentration), and the results are as follows. 1) A total of 773 fire alarms occurred on Daegu Subway Line 1 from 2003 to 2007, and 767 fire alarms occurred from 2018 to 2022. 2) Depending on the cause of the fire, the rate of malfunction (non-fire alarm) was the highest at 87% and 99.4%. 3) 99.09% of fire alarms occurred from smoke detectors, and 0.91% of fire alarms from heat detectors. 4) More than 50% of all fire alarms appear to occur in the waiting room. 5) Considering the current status of occurrence by station, the rate of fire alarm occurrence is high in stations with high floating clearance and low number of floors. 6) Considering the occurrence status by time zone, the occurrence rate is high during commuting hours (7-9:00, 19-20:00) when there is a large floating population and at night time (1;00) when maintenance work is taken. 7) The installation of the platform safety door (PSD) has been shown to have a positive effect on the reduction of fire alarms (non-fire alarms). 8) Considering the monthly occurrence status, the highest number of cases occurred during the summer season (July-September). 9) The occurrence of fire alarms tended to increase as the humidity increased, and in the case of temperature, the most fire alarms occurred in the range of 20 to 29℃. In the case of weather, the occurrence of fire alarms increased on rainy or snowy days. In this paper, the relationship between internal and external factors was analyzed by comparing the status of fire alarms of 10 years that occurred on Daegu Subway Line 1 and the internal and external factors. However, it has limitations that the target area is limited to Daegu Subway Line 1, and the correlation between each factor and fire alarm has not been mathematically analyzed. However, this paper is meaningful in that it is the first to present and analyze the current status of fire alarms in underground spaces of urban railways, and it is expected to be used as basic data for preparing countermeasures for reducing non-fire alarms in the future.