斜面積雪の安定性指標に基づく雪崩警備方法

摘要

In order to ensure the safety of train operation in snowy areas, it is essential to establish a method for precaution against avalanches based on stability indices. In this study, we examined the judgment methods for monitoring slopes and patrol period for avalanche hazards. In the following two steps: First, we extracted monitoring slopes, based on the elevation angle, slope angle and vegetation. Secondly, we determined patrol period, based on stability of snow estimated by air temperature and precipitation. The proposed methods are possible to evaluate monitoring slopes and patrol period, irrespective of areas.%本研究では，本州の多雪地域の山間線区を対象として客観的指標に基づいて雪崩警備斜面および警備期間を判定する方法を検討した。本研究で得られた主な成果を以下にまとめる。