Gregory Thompson credits Vuchic with defining the light rail mode of public transportation through his 1972 report that compared nascent subway-streetcar operation in the United States with the current state in Europe, although the concept of light rail had been discussed at least as early as 1962 by Dean Quinby.[5] Vuchic has made a qualified point about the economic value of public transport for cities, assessing the comparative worth of buses, light rail, or rapid transit. In the October 1972 report prepared for the Urban Mass Transportation Administration defining light rail, he notes that each has a particular urban-geographic setting in which is the better choice. Buses, for instance, are superior to light rail in areas of low density. He contrasts that with rapid transit, which is superior wherever high-capacity, high-speed service is warranted, due to greater population density. Light rail is the optimal solution for transit services of the intermediate kind, being competitive with the automobile where there are space restrictions, but where demand is moderate and high-cost investments are not feasible.[6]
— (1979). Public Transportation: Planning, Operations and Management. Prentice Hall. ISBN978-0137391691. {{cite book}}: |author= has generic name (help)
— (1981). Urban Public Transportation Systems and Technology. Prentice Hall. ISBN978-0139394966.
— (1999). Transportation for Livable Cities. CUPR/Transaction. p. 376. ISBN978-0882851617.
— (2005). Urban Transit Operations, Planning and Economics. John Wiley & Sons. ISBN978-0471632658.
— J. Casello (2007). Transit System Planning. Institute of Transportation Engineers.
— (2007). Urban Transit Systems and Technology. John Wiley & Sons. p. 624. ISBN978-0-471-75823-5.