Estimating the fundamental diagram using moving observers

Conference paper (2018)

Authors

P.B.C. van Erp Transport and Planning - CEG
V.L. Knoop Transport and Planning - CEG
S.P. Hoogendoorn Transport and Planning
Research Group
Transport and Planning (CEG) (TU Delft)
Copyright: © 2018 P.B.C. van Erp, Sebastiaan Thoen, V.L. Knoop, S.P. Hoogendoorn
DOI
help_outline
https://doi.org/10.1109/ITSC.2018.8569474
Fundamental diagram Moving observers Edie’s definitions
More Info
expand_more

Published Date

2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Department

Transport and Planning

Research Group

Transport and Planning

Abstract

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.