Estimating the fundamental diagram using moving observers
| Autor: | Sebastiaan Thoen, Paul B.C. van Erp, Serge P. Hoogendoorn, Victor L. Knoop |
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| Rok vydání: | 2018 |
| Předmět: |
050210 logistics & transportation
0209 industrial biotechnology Work (thermodynamics) moving observers Relation (database) Computer science Equilibrium conditions 05 social sciences Diagram Edie’s definitions 02 engineering and technology Traffic flow 020901 industrial engineering & automation fundamental diagram Flow (mathematics) 0502 economics and business Path (graph theory) Algorithm |
| Zdroj: | ITSC Proceedings of the ITSC 2018: 21st IEEE International Conference on Intelligent Transportation Systems |
| Popis: | 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 {flow, density}-estimates. To evaluate and gain a deeper understanding of the proposed approach, a simulation study was conducted. This study shows that the {flow, density}-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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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