Vehicle Tracker works as a real-time web service that collects Floating Card Data (FCD).
After performing a map-matching operation of the input GPS points, Vehicle Tracker produces average speeds over the arcs of the given graph.
The map-matching algorithm has been inspired by a paper of Marchal, Hackney, and Axhausen (2004). Since it is an incremental algorithm, the map-matching algorithm can be used naturally for online map-matching tasks. This is in contrast to other global map-matching algorithms, which are better for offline analysis of historical data sets.
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