期刊名称：GI_FORUM - Journal for Geographic Information Science
电子版ISSN：2308-1708
出版年度：2014
页码：155-164
DOI：10.1553/giscience2014s155
出版社：ÖAW Verlag, Wien
摘要：Optimal paths in networks are determined by costs attached to nodes and edges. However,these costs are uncertain. The question raised in this paper is how to determine the effectthat this uncertainty has on the optimal path, i.e., the spatial distribution of the optimal path.The method used is Monte Carlo Simulation. The simulation was done for the road networkof Vienna. Travel time serves a cost function and the temporal distribution of travel time isderived from floating car data. The experiment shows that typically several different pathsare possible with similar travel times.
