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Increasing traffic congestion is a constant source of frustration, time loss, and expense to users and managers of transportation systems. Cities, counties, and state transportation agencies are persistently searching for ways to mitigate urban traffic congestion, while minimizing costs and maintenance...

This paper discusses the origin and uses of the Global Positioning System, analyzes its potential uses in the development of the Intelligent Transportation System, and discusses a small case study performed in the Fargo-Moorhead area using a low-end GPS unit.