지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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PURPOSES : Adverse weather conditions such as heavy rain, heavy snowfall, and thick fog and so on have highly affect on the change in traffic conditions on the road. In particular, heavy snowfall causes capacity reduction as well as crash occurrence. This study investigated the effects of snowfall on speed on a freeway. METHODS : Vehicle detection systems data were matched with corresponding weather station data by regression analysis. RESULTS : The results show that the travel speed is reduced by 6.7% under little snowfall and by 12.8% under heavy snowfall. Regarding the speed variation, 8.7% and 114.7% increases are observed under little snowfall and heavy snowfall, respectively. It is also found that 1 cm increase in snowfall leads to 0.4% decrease in travel speed. In addition, the travel speed increases by 0.4% when the temperature increases by $1^{\circ}C$. CONCLUSIONS : It is expected that the outcome of this study will be useful in establishing more effective strategies for winter operations and road maintenance in practice.
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참고문헌 (17)
참고문헌 신청
Brodsky, Veinoglou. / 1988 / The Effect of weather on the relationship between flow and Occupancy on freeways / Transportation Research Record 1194:55~63
박창수 / 2004 / AADT 추정시 강설량에 따른 날씨보정계수 개발에 관한 연구 / 서울도시연구 5(2):19~26
Hanbail R. M. / 1993 / Traffic Volume Reductions Due to Winter Storm Conditions / Transportation Research Record : Journal of the Transportation Research Board 1387:159~164
Hassan Y. A. / 1999 / The impact of unseasonable or extreme weather on traffic activity within Lothian region, Scotland / Journal of Transport Geography 7(3):209~213
Keay K. / 2005 / The association of rainfall and other weather variables with road traffic volume in Melbourne, Australia / Accident Analysis and Prevention 37:109~124
박창수 / 2004 / AADT 추정시 강설량에 따른 날씨보정계수 개발에 관한 연구 / 서울도시연구 5(2):19~26
Hanbail R. M. / 1993 / Traffic Volume Reductions Due to Winter Storm Conditions / Transportation Research Record : Journal of the Transportation Research Board 1387:159~164
Hassan Y. A. / 1999 / The impact of unseasonable or extreme weather on traffic activity within Lothian region, Scotland / Journal of Transport Geography 7(3):209~213
Keay K. / 2005 / The association of rainfall and other weather variables with road traffic volume in Melbourne, Australia / Accident Analysis and Prevention 37:109~124
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