Train_on_Train
Train on Train
Japanese concept for train piggybacking
"Train on Train" (トレイン・オン・トレイン, Torein on Torein) is a concept for piggybacking (that is, carrying narrow-gauge wagons on broader-gauge flatwagons) by the trainload rather than one wagon at a time.
This article's factual accuracy may be compromised due to out-of-date information. (October 2020) |
The need arose when Japan's Hokkaido Railway Company (JR Hokkaido) was planning for standard-gauge Hokkaido Shinkansen high-speed trains to operate in the undersea Seikan Tunnel from 2016. The problem was that narrow-gauge freight trains did not operate at high speeds. Since the tunnel is 53.85 km (33.46 mi) long, incorporating slower trains into the timetable would significantly disrupt high-speed services. The solution was to mount narrow-gauge freight trains on to faster standard-gauge freight trains.[1]