Accuracy of Pedestrian and Traffic Flow Models: Meaningful Quantifications

Accuracy measures are used to quantify the accuracy of road traffic and pedestrian flow observations, models, simulations and predictions. The authors propose two new ways to measure the accuracy, by introducing and quantifying the phase error and the diffusion error. These errors take into account specific features that are of interest in traffic and pedestrian flow models. The phase error penalises a wrong estimate of the location of a high density region, the diffusion error penalises too smooth transitions between high density and low density regions. Combining the results of both accuracy measures, gives better insight than traditional accuracy measures into how the methodologies or models may be improved. Test cases show the application of the accuracy measures for the selection of a simulation method and for parameter estimation. Moreover, they show how the measures can be applied both for (one dimensional) road traffic flow and for (two dimensional) pedestrian flow.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 491-507
  • Monograph Title: Celebrating 50 Years of Traffic Flow Theory: A Symposium. August 11-13, 2014, Portland, Oregon
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01604725
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Jul 15 2016 2:42PM