Traffic assignment problem for footpath networks with bidirectional links

Tanapon Lilasathapornkit, David Rey, Wei Liu, Meead Saberi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


The estimation of pedestrian traffic in urban areas is often performed with computationally intensive microscopic models that usually suffer from scalability issues in large-scale footpath networks. In this study, we present a new macroscopic user equilibrium traffic assignment problem (UE-pTAP) framework for pedestrian networks while taking into account fundamental microscopic properties such as self-organization in bidirectional streams and stochastic walking travel times. We propose four different types of pedestrian volume-delay functions (pVDFs), calibrate them with empirical data, and discuss their implications on the existence and uniqueness of the traffic assignment solution. We demonstrate the applicability of the developed UE-pTAP framework in a small network as well as a large scale network of Sydney footpaths.

Original languageEnglish
Article number103905
JournalTransportation Research Part C: Emerging Technologies
Publication statusPublished - Nov 2022


  • Macroscopic model
  • Pedestrian flow
  • Stochastic model
  • Traffic assignment problem
  • Volume delay function

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Automotive Engineering
  • Transportation
  • Management Science and Operations Research


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