When considering the engineered traffic safety measures against speeding accidents, it is important to know the speed perception structure of each driver. However, how modeling of the speed perception structure can be achieved in theory has not necessarily been carried out in traffic engineering research up to now. If a speed perception structure model can be theoretically derived, a speed choice behavior model incorporating such a perception structure can be expected to be one of the powerful engineered analysis tools for analyzing the effect of traffic safety measures taken against speeding accidents caused by a driver's misperception of speed. The purpose of this paper is to suggest a theoretical model for driver perception of vehicle speed, and to verify the model by conducting in-house experiments with a driving-simulator. The model is built on the basis of knowledge of visual perception psychology research. In the model, a mathematical relationship between the respective time-rate-of-changes of the actual and perceived speeds can be derived, obeying a power law with respect to "sensitivity", which is defined as a new indicator in this paper. Then, the model shows that the sensitivity produces "over-perception of speed" in theory. Through statistical tests from the results of the in-house experiments, this paper shows that the model is statistically valid.


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    Title :

    Self-Motion Speed Perception of Visual Information in Driving: Modeling and Validation


    Contributors:

    Conference:

    Seventh International Conference on Traffic and Transportation Studies (ICTTS) 2010 ; 2010 ; Kunming, China



    Publication date :

    2010-07-26




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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