The different styles of door opening buttons that are in use on Tyne and Wear Metro cars. From left to right these are the protype, standard and refurbished types. The standard door buttons require a significant pressure to be exerted to open the doors. It has been known for passengers to have been conveyed beyond their intended destination as they have been unable to get the doors to open.

Photo by Chris McKenna 08/10/2005.
Larger, higher quality copies of most of my pictures are available, please email if you want a copy. #cmckenna@sucs.org.