Light rail
typically an urban form of public transport using steel-tracked fixed guideways
Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology, while having the capability to operate rolling stock on exclusive right of ways, on grade-separated section as well as in mixed traffic conditions. This capability gives LRT a greater flexibility than other transit modes. "Light" refers to the lighter passengers capacity of a line compared to rapid transit.
The term was coined in 1972 in the United States as an English equivalent for the German word Stadtbahn, meaning "city railroad". Different definitions exist in some countries, but in the United States, light rail operates primarily along exclusive rights-of-way and uses either individual tramcars or multiple units coupled together, with a lower capacity and speed than a long heavy rail passenger train or rapid transit system.
Narrowly defined, light rail transit uses rolling stock that is similar to that of a traditional tram, while operating at a higher capacity and speed, often on an exclusive right-of-way. In broader usage, light rail transit can include tram-like operations mostly on streets. Some light rail networks have characteristics closer to rapid transit. Only when these systems are fully grade-separated, they are referred to as light metros or light rail rapid transit (LRRT).
Terminology
The term light rail was introduced in 1972 by the U.S. Urban Mass Transportation Administration (UMTA, predecessor to the Federal Transit Administration) to describe modernized streetcar systems in Europe and North America.
Begin with the source’s own compact description: “Light rail” is typically an urban form of public transport using steel-tracked fixed guideways. The dossier treats that line as a proposition to test through Light, rail and typically, not as a finished interpretation.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 26, 2026. The linked authority identifier is Q1268865. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1972.
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This entry incorporates text from “Light rail” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.