In order to perform the steering task for lane keeping, drivers rely on both short-range and long-range guidance cues. However, at night, because of reduced visibility, driver have to rely primarily on short-range guidance. Consequently, improvements to long-range guidance at night should improve nighttime driving performance. Previous research showed that retroreflective lane markings, while assisting in short-range guidance, do not provide long-range guidance. On the other hand, there is some evidence that post-mounted delineators can provide valuable long-range information concerning the road ahead. This evidence (briefly reviewed in this report) comes from information-processing and driver-steering models, as well as from some limited, prior, empirical studies. Frequency analysis of steering performance is a possible approach for obtaining information about the effects of post-mounted delineators on driving at night. An exploratory field study was performed using this approach.


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    Title :

    Post-Mounted Delineators and Perceptual Cues for Long-Range Guidance during Night Driving


    Contributors:
    J. Schumann (author)

    Publication date :

    2000


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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