기상요소와 교통사망사고의 관계에 관한 연구

Abstract

The relationship between meteorologic factors and the fatal traffic accidents is analyzed in this study. Hypothesis I : The fatal traffic accidents may be influenced by the meteorological factors. The cloud amount, humidity, precipitation, and wind speed were analyzed from 2001 to 2005 using meteorological materials published by the Korea Meteorological Administration. Results show that cloud amount and windspeed have low relationship, but high humidity and precipitation have significant relationship in the fatal traffic accident. The high humidity may be treated as a kind of rainy day. So, hypothesis I may be proved to be true in precipitation factor.Hypothesis II adds the timing factors on the precipitation factor. So, rainy day, before the rainy day, after the rainy day or a day between the rainy days were analyzed to have any impacts on the fatal traffic accidents.In this study, the relationship between the precipitation factors and the fatal traffic accident were studied. The increase in the fatal traffic accidents is influenced by the precipitation day, the day after or before the precipitation, days between precipitation day.These results indicate that fatal accidents were occurred more in days after precipitation in spite of the cloud amount, humidity, wind speed, and precipitation rate, even in finer days. The road conditions may be humid and slippery due to the previous precipitation, but fine days may cause drivers to neglect their alertnesses.Also, traffic amount may be increased in days after precipitation, which leads to more fatal traffic accidents. The study shows that preventive measures to reduce fatal traffic accidents may be required in fine days after precipitation as well as in precipitation days.