Travel time is a fundamental measure in transportation, and accurate travel time forecasting is crucial in intelligent transportation systems (ITSs). Currently, many techniques have been applied to travel time forecasting; however, the reliability of the prediction has not been studied in these approaches. In this paper, we propose an approach using the generalized autoregressive conditional heteroscedasticity (GARCH) model to study the volatility of travel time and supply the information about reliability for travel time forecasting. Three examples on real urban vehicular traffic data show the whole modeling process. In the experiments, we utilize the conditional predicted standard deviation (PSD) to express the reliability of travel time forecasting and screen out the sample points that are thought to be reliable forecasting. The results show that the root-mean-square error (RMSE), mean absolute error (MAE), and mean absolute percent error (MAPE) are all decreasing with an increase in the demand of the reliability. It proves that the model well depicts the reliability of travel time forecasting and that the proposed approach is feasible.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Reliability of Travel Time Forecasting


    Beteiligte:
    Menglong Yang, (Autor:in) / Yiguang Liu, (Autor:in) / Zhisheng You, (Autor:in)


    Erscheinungsdatum :

    01.03.2010


    Format / Umfang :

    1276188 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    The Reliability of Travel Time Forecasting

    Yang, M | Online Contents | 2010


    Forecasting travel time reliability in urban road transpo

    Mattias Juhász / Tamás Mátrai / Csaba Koren | DOAJ | 2017

    Freier Zugriff

    Forecasting Travel Time

    Roden, D. B. / National Research Council | British Library Conference Proceedings | 1996


    Practical Considerations in Implementing Reliability of Travel Time in Forecasting of Regionwide Travel

    Horowitz, Alan J. / Granato, Sam | Transportation Research Record | 2012


    Forecasting Travel Time

    Roden, David | Transportation Research Record | 1996