A method to estimate the macroscopic fundamental diagram using limited mobile probe data

Andrew S. Nagle, Vikash V. Gayah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Recent work has shown that average vehicle flow and density on urban traffic networks are related and can be used to describe traffic conditions across a network. This relationship, known as the Macroscopic Fundamental Diagram (MFD), can also be used to describe network dynamics, unveil insights into network behavior and develop network-wide control strategies to improve efficiency. However, deriving the MFD of a network is difficult due to large data requirements. In this work, we propose a method to estimate average network flows and densities using trajectory data from mobile vehicle probes that is becoming increasingly available through advances in Intelligent Transportation System technologies and the Connected Vehicle program. This information can be used to directly estimate the MFD, and could also be used to monitor traffic conditions in real time if the requisite probe data is available. This methodology is tested on a micro-simulation network and shown to be very accurate when mobile probe penetration rates reach at least 15%. The only drawback is a requirement that this penetration rate is known a priori. However, if this probe data is obtained through the Connected Vehicle program, it is likely that the penetration rate would be known and slow changing with time. If other sources are used, the penetration rate can also be estimated in real time using additional data from traditional traffic sensors.

Original languageEnglish (US)
Title of host publication2013 16th International IEEE Conference on Intelligent Transportation Systems
Subtitle of host publicationIntelligent Transportation Systems for All Modes, ITSC 2013
Pages1987-1992
Number of pages6
DOIs
StatePublished - Dec 1 2013
Event2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013 - The Hague, Netherlands
Duration: Oct 6 2013Oct 9 2013

Publication series

NameIEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC

Other

Other2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013
CountryNetherlands
CityThe Hague
Period10/6/1310/9/13

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Mechanical Engineering
  • Computer Science Applications

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    Nagle, A. S., & Gayah, V. V. (2013). A method to estimate the macroscopic fundamental diagram using limited mobile probe data. In 2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013 (pp. 1987-1992). [6728521] (IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC). https://doi.org/10.1109/ITSC.2013.6728521