A History and Present State of Railway Tunnels in Japan

Former KANSEI RAILWAY COMPAN

Abstract

This paper describes a history and present state of railway tunnels, based on field surveys and histrical records, taking an example of former Kansei Railway Company (now JR-Kansai main line and its branches). Through this case study, it became clear that the tunnels have been bored to various inside shape and some of them have portals by special individual designs.