Automatic platform gates are chest-height sliding doors at the edge of railway platforms to prevent passengers from falling off the platform edge onto the railway tracks. Like full-height platform screen doors, these platform gates slide open or close simultaneously with the train doors. As compared to platform screen doors, these half-height platform gates are relatively cheaper to install as they require less metallic framework for support. As such, some railway operators may prefer such an option to improve safety at railway platforms and, at the same time, keeping costs low and non-air-conditioned platforms naturally-ventilated. These gates, however, are less effective, as compared to platform screen doors, in preventing people from jumping onto the tracks. These gates are firstly in practical use by Hong Kong metro system, MTR on Disneyland Resort Line for their open-air stations design. As the first photo shows they are relatively low for adult height. The later design by other manufacturers, such as Kaba Gigen AG, have their gates higher than the one installed on Disneyland Resort Line. Normally reach the adult shoulder.
Examples
- Hong Kong: MTR - both stations of Disneyland Resort Line
- Mainland China
- Beijing Subway - elevated stations of Line 5
- Tianjin Metro
- Shanghai Metro - Line 5
- Guangzhou Metro - elevated stations of Line 4
- Taiwan: Taipei Rapid Transit System - Nangang Line, Danshui Line
- Japan
- Tokyo: Tokyo Metro - Marunouchi Line, Toei - Mita Line
- Yokohama: all stations of Yokohama Municipal Subway
- Osaka: Osaka Municipal Subway - Imazatosuji Line
- Fukuoka: all stations of Fukuoka City Subway
- Singapore: Sentosa Express monorail
- Paris: Paris Métro - Line 13
References
- ^ Platform Screen Doors (English). Kaba Gigen AG. Retrieved on 9th December, 2007.


