@article{ref1,
title="A pedestrian network construction algorithm based on multiple GPS traces",
journal="Transportation research part C: emerging technologies",
year="2013",
author="Kasemsuppakorn, Piyawan and Karimi, Hassan A.",
volume="26",
number="",
pages="285-300",
abstract="Currently, pedestrian networks are not as widely available as road networks are for many areas; this is partly due to the high demand for applications such as car navigation. However, this situation is rapidly changing as GPS-enabled mobile devices are increasingly becoming commonplace for pedestrian applications and as they are potential for volunteered data collection. For this reason, the development of efficient and cost-effective techniques appropriate for collecting and constructing pedestrian network databases is needed. This paper presents an algorithm for automatically identifying geometries of pedestrian path segments and constructing a pedestrian network from multiple GPS traces. The algorithm was experimented by using two sets of data sources, self-collected walking traces and OpenStreetMap (OSM) walking traces. The experiment with self-collected data was validated by comparing the constructed pedestrian network with a network baseline and calculating the quality measurements in three environment settings. The experiment with OSM traces was validated by visually inspecting maps overlaid on high-resolution images. Evaluation results show that the algorithm can automatically construct pedestrian networks.<p />",
language="en",
issn="0968-090X",
doi="10.1016/j.trc.2012.09.007",
url="http://dx.doi.org/10.1016/j.trc.2012.09.007"
}