| Title |
Classification of Freeway Traffic Condition by the Impacts of Road Weather Factors |
| Keywords |
traffic condition classification;weather factor;speed variation;RWIS;기상요인;속도 변화;요인분석;분사분석;유형 분류 |
| Abstract |
The purpose of this paper is to classify the traffic condition in freeway by the impacts of road weather. The factor analysis showed that weather factors, which are considered as influential, are identified as weather condition (rain or clear), temperature and sight distance with RWIS and VDS data in Seohae bridge used. The result of ANOVA shows that weather is divided into clear and rainy; temperature into below and equal or above 5℃; and sight distance into below or equal or above 10㎞. Based on those factors, the freeway traffic condition has been classified as five different types. The flow-speed model for each traffic conditions was proposed, which was not significant due to the lack of smaple data. Although not sufficient, the methodology to categorize traffic situation model presented in this paper may shed light on the idea for the future and can be used for proper traffic management for each weather condition. |