You may have never even really noticed those big white circles on the London Underground, let alone knowing it's where important emergency buttons are located. But TfL have explained what exactly is ...

TAIPEI (Taiwan News) — Taipei Metro on Saturday (June 10) completed a test for an emergency stop button (EMS) at a station on the Wenhu Line in the wake of a deadly Taichung MRT accident last month.

The pushbutton combines safety operation and high visibility status indication in one housing. With no assembly, individual wiring or additional enclosure required, it enhances productivity as well as ...