While rumble strips save lives and reduce property damage for motorists, they can be a problem for bicyclists. For obvious reasons most cyclists ride on the shoulder. However, when debris or a parked vehicle blocks the shoulder, it becomes necessary for the cyclist to cross the rumble strip to move into the lane and go around the obstacle. An aggressive rumble strip, with wide deep grooves, can cause a very unpleasant level of vibration in the bicycle and possible loss of control. This study, funded by CDOT and the FHWA, compared three styles of rumble strips in an attempt to find to find a rumble strip that will provide a warning for motorists who have drifted off the highway without making the shoulders unusable for bicyclists. The rumble strips evaluated were: (1) Colorado's standard ground-in asphalt rumble strip; (2) Colorado's standard concrete rolled-in rumble strip; (3) A new two-inch-groove rumble strip ground into asphalt.


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    Title :

    Bicycle-Friendly Rumble Strips


    Contributors:
    W. Outcalt (author)

    Publication date :

    2000


    Size :

    136 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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