Citation

Iwasa K. Jpn. Railw. Eng. 1977; 17(1): 4-6.

Copyright

(Copyright © 1977, Japan Railway Engineers' Association)

DOI

unavailable

PMID

unavailable

Abstract

The high density of traffic and high speeds on Japanese National Railways make important reliable signaling and safety devices. Described are the evolution of automatic train stop, cab signals, automatic speed supervision and other controls.