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mass transit,public transportation systems designed to move large numbers of passengers.
Types and Advantages
Mass transit refers to municipal or regional public shared transportation, such as buses, streetcars, and ferries, open to all on a nonreserved basis. An important form of mass transit is rapid transit, such as subways and surface light rail systems, designed for commuting between urban and suburban (or exurban) centers. Mass transit can be divided into fixed route systems (often involving rails), such as streetcars and subway trains, and nonfixed route transit (along surface streets or water), such as buses and ferries, but does not usually include airplanes, taxis, or long-distance rail with more formal ticketing procedures. Mass transit systems offer considerable savings in labor, materials, and energy over private transit systems. Since far fewer operators are required per passenger transported, they can be better trained and more strictly licensed and supervised.
When utilized to any reasonable fraction of their capacity, mass transit vehicles carry a far higher passenger load per unit of weight and volume than do private vehicles. They also offer fuel savings, not only because of the relative reduction in weight transported, but also because they are large enough to carry more efficient engines. Further, if emphasis is given to mass transit in the planning of future ground transportation systems, smaller rights of way will be possible, lessening the amount of landscape that must be paved over for highways and roads. Although mass transit offers many savings, it does require some sacrifices in personal convenience. These are the necessity to travel on a fixed rather than an individually selected schedule and to enter and disembark from the system only at certain designated locations. The obvious goal for a mass transit system is to have as few unused passenger accommodations as possible.
See also rapid transitrapid transit,
transportation system designed to allow passenger travel within or throughout an urban area, usually employing surface, elevated, or underground railway systems or some combination of these.
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The history of mass transportation is intimately connected to industrialization, urbanization, and the separation of residence from workplace. By the beginning of the 20th cent., London, New York, Boston, Paris, Budapest, and other major cities had fixed-rail subway systems (sometimes elevated); by the 1920s buses were common. In the United States, patronage of mass transit grew steadily from 1900 (six billion passengers per year) to 1927 (over 17 billion), but plummeted during the Great Depression. Patronage grew again during War II, peaking in 1946 at 23 billion riders, but then dropped steadily every year until the mild renaissance of public transit in the early 1970s.
The total number of riders in 1970 was less than that of 1910. The reasons for these declines are complex and often political. Los Angeles, for example, had over 1,000 miles of trolley and interurban lines before 1930; this system was taken over by a private company, dismantled, and replaced with noisy, polluting, and comparatively slow buses. Since few people chose to ride them, costs rose, thereby cutting the number of passengers further. To reduce costs, private companies eliminated outlying branches and smaller stations. These trends, along with inexpensive gasoline, suburban and highway development, the deterioration of older subway lines, and the greater freedom cars offered, helped turn the United States into a car culture.
However, as the public has grown increasingly concerned over the impact of cars on the environment and the quality of life in urban areas, there is growing support for the development of more efficient and comfortable mass transit systems. Models for such systems were developed in Europe and Japan. Trains in the Paris Metro, for example, operate on rubber tires and can reach speeds of 48 mph (77 km). Smaller cities are watching developments in Edmonton, Canada, which built a 4.5-mi (7.2-km) rapid transit system of lightweight trains at a cost of $65 million instead of adding five new freeways at ten times the cost.
In the United States, efforts to upgrade mass transit systems have experienced mixed results. The trend has been away from private ownership; by 1990 over 90% of North American mass transit was publicly owned and managed. The BART (Bay Area Rapid Transit) system serving San Francisco and neighboring cities maintained service during the 1989 earthquake, but it has never attracted the number of riders originally anticipated. Washington, D.C.'s Metro system (144 million riders in 1988) included a wider area of service and more efficient schedules. Currently buses account for 60% of mass transit rides in the United States; innovations such as articulated buses and reserved lanes on highways are balanced by the problems of noise, air pollutionair pollution,
contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are transportation engines, power and heat generation, industrial processes, and the
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See R. Fogelson, Fragmented Metropolis (1967); S. Fischler, Moving Millions (1979); B. Cudahy, Cash, Tokens and Transfers: A History of Urban Mass Transit (1991); R. C. Post, Urban Mass Transit: The Life Story of a Technology (2006).