Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

A. Graser, W. Ponweiser, M. Dragaschnig, N. Brändle, Peter Widhalm:
"Assessing Traffic Performance using Position Density of Sparse FCD";
Vortrag: Intelligent Transportation Systems Conference 2012, Anchorage (USA); 16.09.2012 - 19.09.2012; in: "2012 15th International IEEE Conference on Intelligent Transportation Systems", IEEE (Hrg.); IEEE, CFP12ITS-USB (2012), ISBN: 978-1-4673-3062-6; Paper-Nr. CFP12ITS-USB, 6 Seiten.

We present an approach for evaluating traffic
performance along corridors and its variation based on floating
car data (FCD). In contrast to existing work, our approach
can cope with long and irregular FCD reporting intervals.
Resampling of sparse FCD in time and interpolation increases
spatial resolution of FCD positions along the corridors. FCD
position density is computed with a uniform kernel, which
leads to traffic performance expressed as average travel time
per meter and average speed. Experimental results based on
real-world FCD for a freeway section and arterial roads in
Vienna illustrate the plausibility of the approach, and an
example illustrating our approach before and after a traffic
influencing measure shows its advantage over using dedicated
probe vehicle runs, temporary sensor installations or human
observers. A sensitivity analysis provides guidelines for the
important parameters.

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