高速道路の短期的機能低下に伴う首都圏への物資流入量変動分析

降雪時における青果物入荷量データを用いて

抄録

The depression of expressway caused by natural disaster or unusual weather conditions sometimes triggers much confusion in supplies' inflow. Some papers pointed out that volcanic ash-fall by Mt. Fuji’s eruption would bring serious depression of expressway network. However, industries supported by an expressway do not always preprare for an unusual road condition with correct understanding of its influence. This study, then, focused on a snowfall weather and analyzed the influence on inflow to the Metropolitan Region by the expressway depression. Daily vegetable’s inflow made us work on a quantitative study. We could find how much vegetable could not arrive on time by an expressway depression caused by snowfall.