Quasi-dynamic network loading: adding queuing and spillback to static traffic assignment

M.C.J. Bliemer, L.J.N. Brederode, Luc Johannes Josephus Wismans, E.S. Smits

Research output: Book/ReportReportProfessional

286 Downloads (Pure)


For many years, static traffic assignment models have been widely applied in transport planning studies and will continue to be an important tool for strategic policy decisions. As is well known, in the traditional approach, the location of the delays and queues are not predicted correctly, and the resulting travel times do not correspond well with reality. Dynamic models can approach reality much better, but come at a computational cost. In this paper we propose a quasi-dynamic model which inherits most of the computational efficiency of static models, but aims to keep most of the important dynamic features, such as queuing, spillback, and shockwaves. Instead of adjusting the traditional static model or using heuristics, we theoretically derive the model from the dynamic link transmission model, assuming stationary travel demand and instantaneous flow. Furthermore, we present algorithms for solving the model. On a corridor network we illustrate the feasibility and compare it with other approaches, and on a larger network of Amsterdam we discuss the computational efficiency.
Original languageEnglish
Place of PublicationSydney
PublisherInstitute of Transport and Logistics Studies (ITLS)
Publication statusPublished - 2012

Publication series

NameITLS working paper
PublisherInstitute of Transport and Logistics Studies (ITLS)


  • METIS-285630
  • IR-101252


Dive into the research topics of 'Quasi-dynamic network loading: adding queuing and spillback to static traffic assignment'. Together they form a unique fingerprint.

Cite this