Mobility

Enhanching in Vehicle Digital Maps Via GPS Crowdsourcing

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Executive Summary

In this paper, the authors propose a simple and effective method to extend digital maps with the location and timing of stop-signs and traffic lights in a city, given GPS traces collected by on-road vehicles. Their system finds the location and timing of traffic lights and stop-signs using a small number of traces per road segment. They developed and evaluated the system by applying it to two sets of GPS traces - open street map, a multicity, publicly available database of GPS traces, and a set of traces collected in west Los Angeles.

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