Method and apparatus for providing navigational guidance using the states of traffic signal
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United States of America Patent
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Mar 21, 2017
Grant Date -
Aug 28, 2014
app pub date -
May 5, 2014
filing date -
Jan 24, 2007
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Abstract
A method and apparatus for predicting traffic on a transportation network where real time data points are missing. In one embodiment, the missing data is estimated using a calibration model comprised of historical data that can be periodically updated, from select links constituting a relationship vector. The missing data can be estimated off-line whereafter it can be used to predict traffic for at least a part of the network, the traffic prediction being calculated by using a deviation from a historical traffic on the network. The invention further discloses a method for in-vehicle navigation; and a method for traffic prediction for a single lane.
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