Freeway management systems are becoming increasingly important for many ITS applications. To achieve better freeway management, effective traffic performance evaluation parameters are crucial. Most of the current evaluation parameters are from a macroscopic point of view, e.g., level-of-service based on traffic density. This paper proposes evaluation parameters in a microscopic way and investigates the relationship between macroscopic level of service (LOS) derived from roadway sensor readings and the microscopic quality of service (QOS) of traffic from the drivers' point of view. This is important for several ITS applications that need to monitor roadway network traffic conditions, e.g., incident detection. It has been found that macroscopic LOS does not represent the microscopic traffic flow quality very well. A new criterion for determining microscopic traffic flow quality is proposed using average speed values and speed coefficient of variation (CV) of micro-trips. A Gaussian mixture model and Expectation Maximization (EM) algorithm are used to find the best partitioning thresholds. Experimental results verify the effectiveness of the proposed quality of service measure.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Microscopic Traffic Flow Quality of Service from the Drivers' Point of View


    Contributors:


    Publication date :

    2007-09-01


    Size :

    4922448 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Towards a Unified View of Microscopic Traffic Flow Theories

    Krauss, S. / Technical University of Crete; Department of Production and Management Engineering | British Library Conference Proceedings | 1997


    Traffic safety from the point of view of taxi drivers - conclusions and advice for traffic engineers

    Krasnianski, J. / German Federal Highway Research Institute (BASt) / United States et al. | British Library Conference Proceedings | 2000


    Traffic safety from the point of view of taxi drivers - conclusions and advice for traffic engineers

    Krasnianski,J. / Sczecin Technical Univ.,PL | Automotive engineering | 1999


    Variability in Traffic Flow Quality Experienced by Drivers

    Ko, Joonho / Guensler, Randall / Hunter, Michael | Transportation Research Record | 2006