Within the European research project SimpleFleet, a telematics system for fleet management business intelligence was developed, delivering live or near-realtime statistics about individual vehicles or the entire fleet. This supports the fleet manager in ad-hoc decisions and in medium and long term improvements. The fleet vehicles (e.g. taxis, delivery vans) are equipped with an On-Board-Unit (OBU) for GPS tracking and data collection from other sensors, e.g., an engine on/off detector. These raw data are sent to a host system and database, being enhanced to Floating Car Data (FCD) using map-matching and routing. Beside other route-related information, consulted fleet operators expressed their interest especially in fuel consumption calculation. For this purpose the German EWS procedure was chosen, providing 2nd degree polynomial functions of the driven speed. Final results for the test in the Athens region are presented, including the comparison of two calculation approaches with different aggregation levels of driven speeds.
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