Parameters influencing probe vehicle based travel time estimation accuracy

Floating Car Data (FCD) is becoming a more and more popular technique for travel time measurements in road networks. Nevertheless, FCD is a sampling technique which requires controlling the statistical properties of link travel times to obtain accurate estimations. Based on microsimulation outputs, this paper shows which parameters play a key role in the travel time estimation accuracy, particularly in the case of urban networks. Among them, aggregation period and link definition are the most critical ones. They must be properly chosen according to the equipped vehicles ratio.


Published in:
Proceedings of the 4th STCR Swiss Transport Research
Presented at:
4th STCR Swiss Transport Research Conference, Monte Verità, Ascona, Switzerland, March 25-26, 2004
Year:
2004
Keywords:
Note:
CD
Laboratories:




 Record created 2008-01-17, last modified 2018-03-17

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