Self-adapting prediction model for traffic flow status

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    The purpose of the study was to develop a method for making a self-adapting short-term prediction model for the flow status. The model was based on field-measured travel time data and self-organising maps. The test site was Ring Road I in the Helsinki metropolitan area. The forecasts were based on the outcomes of previous moments when the traffic situation was similar to the present. The forecast was set to the most common outcome in the cluster of these similar samples. The model was allowed to work online and its performance was studied. The proportion of correct forecasts was 93.8-96.3% over the entire trial period and 80.9-82.3% in congested conditions for the model in normal weather and road conditions. The average daily change in the proportion of correct forecasts was positive over the whole trial period: +0.3-0.4%. Two naïve comparison models were made. Both comparison models performed considerably poorer than the self-adapting model.
    Original languageEnglish
    Title of host publicationProceedings of 12th WCTR
    Subtitle of host publicationWorld Conference on Transportation Research
    Place of PublicationLisbon
    Publication statusPublished - 2010
    MoE publication typeA4 Article in a conference publication
    EventWorld Conference on Transportation Research, WCTR - Lissabon, Portugal
    Duration: 11 Jul 201015 Jul 2010


    ConferenceWorld Conference on Transportation Research, WCTR


    • prediction
    • traffic flow status
    • self-organising map


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