A threshold plate (10) in rolling stock has a step section (11) in flat plate shape placed substantially horizontally, functioning as a foot-step. A light-holder section (12) located outside a step section (11) accommodates a light section (14). Lighting o...

A method for detecting the velocity (v) of a railroad car (1) and a vertical acceleration (a) that occurs at the portion of a car body (2) above a spring device (6) of a bogie (3) while the car (1) is running on a track, and also extracting a component of ...