Navigation device assisting road traffic congestion management
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United States of America Patent
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-
Dec 11, 2012
Grant Date -
Sep 25, 2008
app pub date -
Mar 10, 2008
filing date -
Mar 9, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A navigation device has a GPRS receiver for receiving real-time information about slow traffic flow or slow average speed on a stretch of motorway, indicating congestion. The device calculates a new itinerary to avoid the congestion, based on historically recorded speeds on secondary roads weighed by the current average speed in the congestion area.
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