Automatic Platform Gate
Automatic platform gates (or half-height platform screen doors as referred to by some manufacturers) 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 closed simultaneously with the train doors.
Half-height platform gates are cheaper to install than platform screen doors, which require more metallic framework for support. Some railway operators may therefore prefer such an option to improve safety at railway platforms and, at the same time, keep costs low and non-air-conditioned platforms naturally ventilated. However, these gates are less effective than full platform screen doors in preventing people from intentionally 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. The later design by other manufacturers, such as Kaba Gilgen AG, have their gates higher than the one installed on Disneyland Resort Line.
Read more about this topic: Platform Screen Doors
Famous quotes containing the words automatic, platform and/or gate:
“She smoothes her hair with automatic hand,
And puts a record on the gramophone.”
—T.S. (Thomas Stearns)
“I marched in with the men afoot; a gallant show they made as they marched up High Street to the depot. Lucy and Mother Webb remained several hours until we left. I saw them watching me as I stood on the platform at the rear of the last car as long as they could see me. Their eyes swam. I kept my emotion under control enough not to melt into tears.”
—Rutherford Birchard Hayes (1822–1893)
“And we, barely recalled from sleep there, sense
Arrivals lowing in a doleful distance
Horny dilemmas at the gate once more.
Come and choose wrong, they cry, come and choose wrong....”
—Philip Larkin (1922–1986)