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| | Bilevel car at AllExperts |
 | | The bilevel car or double-decker is a design to solve the problem of increasing passenger capacity on railcars, without squeezing more (smaller) seats into the same space and/or decreasing the pitch (distance between seats). |
 | | Amtrak Superliners are double-decker cars of this variety, with the entrance a step or so up from the lowest station platform level, or at the level of slightly higher platforms, and allow passage from car to car at upper-deck level. |
 | | These cars, known as "bilevel gallery cars", are among the most successful designs developed, and are currently in daily use in Chicago, San Francisco, and Montreal (Agence métropolitaine de transport). |
| en.allexperts.com /e/b/bi/bilevel_car.htm (1017 words) |
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