눈？비로 인한 도시부 교통망의 거시적 영향분석

Abstract

Two-fluid model was applied to investigate the impact of the rain and snow on the urban street network characteristics. In two different case networks, the probe vehicle data were collected and used to estimate the two parameters of the model. According to the statistical test of the structural change, the rain did not show any prominent parameter value change. On the other hand, the snow incurred considerable adverse change of the parameters. With additional before and after data set of the snowing, the parameter recovering trend to normal values was observed. The trend indicates it needs three to four days to recover the normal network performance after snowing. Although this result needs to be further investigated with richer data in future, this paper has two important meanings: the first study to utilize the two-fluid model in Korea and the first study to utilize the model to characterize the rain and snow impact on the network performance in this field. 키워드(Key Words): two-fluid 모형, 영향분석, 도시부 교통망, 거시적 교통망 평가,two-fluid model, impact analysis, urban street network, macroscopic network evaluation