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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 proposed Coventry Very Light Rail which is at-grade, low passenger capacity (60-70 people), battery powered so no overhead lines also falls into this category. A Very Light rail vehicles is described as vehicles weighing less than 1 tonne / m3.