Changes in Inbound Traffic Volume of a Heavy Snowfall Impacted Area -A Case Study on the Heavy Snowfall Event of the Youngdong Region in 2011-

Abstract

We analyzed the impact of the heavy snowfall occurred from Feb. 10 to Feb. 14, 2011 on the inbound daily traffic volume of the Gangneung Highway Tollgate using time series regression models. We found that the maximum reduction rate of inbound highway traffic volume during the heavy snowfall period is 70%. The inbound traffic volume increased steadily to normal inbound traffic volume after 2 to 4 days from the date when the snowfall stopped. The reason why 2 to 4 days are needed to reach normal inbound traffic volume is that it took substantial time to clear snow from the roads.