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A light railway is a railway built at lower costs and to lower standards than typical "heavy rail": it uses lighter-weight track, and may have more steep gradients and tight curves to reduce civil engineering costs. These lighter standards allow lower costs of operation, at the price of lower vehicle capacity.
Light rail is a generic international English phrase for types of rail systems using modern streetcars/trams, which means more or less the same thing throughout the English-speaking world. Light rail systems can range from trams running in streets along with other traffic, to semi-metro systems having portions of grade separated track. [13]
The SLRV is a double-ended high-floor articulated light rail vehicle 71 ft (22 m) long overall (over the anticlimbers), in the same range as many heavy rail vehicles both at the time and now, but noticeably shorter than many other modern LRVs such as the at-minimum-81-foot (25 m) Siemens S70 and S700 commonly found today, which rides on three ...
Very light rail or ultra light rail is a term for light rail with more modest initial requirements than typical light rail. Parry People Mover which is grade-separated, low passenger capacity (maximum 35 standing) powered by LPG with no overhead lines, has been described as ultra light rail.
The Siemens SD-100 and SD-160 are two related types of high-floor light rail vehicles (LRV), manufactured by Siemens Mobility for the North American market. A total of 431 vehicles were built by Siemens in Florin, California from 1992 to 2013. The SD-100 began production in 1992, and is equipped with direct current traction motors and folding ...
Modern light rail technology has primarily German origins, since an attempt by Boeing Vertol to introduce a new American light rail vehicle was a technical failure. After World War II, the Germans retained their streetcar (Straßenbahn) networks and evolved them into model light rail systems . [5]
All of the concepts proposed a longer vehicle than the current Type 8/9 cars, with lengths ranging from 100 to 131 ft (30 to 40 m). The MBTA's final concept for the new cars was a 114-foot (35 m) articulated low-floor light rail vehicle made up of 7 segments, riding on 4 trucks, and equipped with 5 sliding doors on each side. [5]: 30–35
The MBTA's light rail vehicle types follow the nomenclature of the Boston Elevated Railway, which operated five series of cars. The numbering resumed with the unbuilt Type 6 prototype in the late 1960s, and continued with the custom-designed Type 7 and Type 8 of the 1980s and 1990s respectively.