Map matching based on multi-layer road index

This study develops a new map matching algorithm targeting off-line applications. The algorithm takes a holistic view of the entire global positioning system (GPS) trajectory and finds its match by first dividing it into several segments. This segmentation is made possible through creating a multi-layer road index system for the original road network. For each segment, a global map matching strategy is employed to identify the best match. The algorithm is compared against three state-of-the-art map matching algorithms from the literature. To get ground truth data, the authors design and perform numerous test drives with predefined paths that have a total length of 234 km. GPS trajectories recorded during the test drives are used to evaluate the algorithms. The authors' numerical experiments show the proposed algorithm improves match efficiency by up to two order of magnitude compared to the benchmark algorithms. Importantly, it achieves this remarkable speedup with negligible losses in matching accuracy.

Language

  • English

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Filing Info

  • Accession Number: 01751528
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 5 2020 3:18PM