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| | Light rail - Wikipedia, the free encyclopedia |
 | | Light rail is the successor term to streetcars, trolleys and trams in many locales, although the term is most consistently applied to modern or modernised tram or trolley operations employing features more usually associated with metro or subway operations, including exclusive rights-of-way, multiple unit train configuration and signal control of operations. |
 | | Light rail traces its pedigree to street railways, whereas rapid transit (metro) technology evolved from steam commuter operations, such as were seen in London, New York City, and Chicago. |
 | | Light rail is generally powered by electricity, usually by means of overhead wires, but sometimes by a live rail, also called third rail (a high voltage bar alongside the track), requiring safety measures and warnings to the public not to touch it. |
| en.wikipedia.org /wiki/Light_rail |
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