About SASAKI KUNIAKI
About 気象研究ノート
About heavy snow
About Yamanashi prefecture
About truck
About large automobile
About traffic congestion
About measuring instrument
About national highway
About information service
About tachograph
About Natural disasters
About Traffic surveies
About 雪氷災害
About 対策
About 大雪
About 山梨
About 貨物車
About 除雪
About 交通状況