Estimating the fundamental diagram using moving observers

Paul van Erp, Sebastiaan Thoen, Victor Knoop, Serge Hoogendoorn

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

4 Citations (Scopus)
34 Downloads (Pure)


The fundamental diagram (FD) describes the relation between the flow and density in equilibrium conditions. In this paper, we propose an estimation approach to estimate the FD based on data from moving observers. This approach consists of two main steps: (1) estimate flow and density for space-time areas based on trajectories of moving observers and the times and locations they are overtaken or being overtaken and (2) estimate the FD based on the fflow,densityg-estimates. To evaluate and gain a deeper understanding of the proposed approach, a simulation study was conducted. This study shows that the fflow,densityg-estimates provide valuable information to estimate the FD. Furthermore, the FDs belonging to the simulated traffic flow are estimated accurately. We realize that the second step is expected to be less accurate for traffic that behaves stochastic. Therefore, we provide a potential solution path to extend the second step in future work.
Original languageEnglish
Title of host publicationProceedings of the ITSC 2018: 21st IEEE International Conference on Intelligent Transportation Systems
Number of pages7
Publication statusPublished - 2018
Event21st IEEE International Conference on Intelligent Transportation Systems, ITSC 2018 - Maui, United States
Duration: 4 Nov 20187 Nov 2018
Conference number: 21


Conference21st IEEE International Conference on Intelligent Transportation Systems, ITSC 2018
Abbreviated titleITSC 2018
CountryUnited States
Internet address

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • moving observers
  • Edie’s definitions
  • fundamental diagram


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