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R. Boldt (2000)
Information Technology Update for TransitTCRP Synthesis of Transit Practice
(1998)
United States Department of Transportation
Intelligent Transportation Systems in the United States 61 Intelligent Transportation Systems: Creating Operational, Institutional, and Labor Force Changes in the United States Robert E. Paaswell MERICANS are noted f or their mobility. In fact, for the last two decades, the rate at which American households Ahave been acquiring cars and the number of vehicle miles they have been traveling with them have increased faster than popu- U.S. Department of Transportatio n lation. These cars are used on over 3.9 million miles of roadway, making 378 billion trips per year totaling more than 2 trillion miles. An additional 8 billion trips are made each year in the United States using American Public Transit Association public transit. All this mobility does not come without penalty. Congestion, deteriorating air quality, sprawl, and high energy use have resulted from nearly a century of this growing mobility. Americans would like to correct these problems without sacri- ficing their mobility. They are addressing air quality through legisla- tion, cleaner vehicles, and fuels; congestion through innovative traffic control and nascent efforts to institute user pricing; and sprawl through reexaminations of land-use policies. These efforts are being complemented by technical approaches that, collectively, are called Intelligent Transportation
Journal of Urban Technology – Taylor & Francis
Published: Aug 1, 2001
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