Attempts were made to photograph contact and near-miss situations at impact-attenuation devices under real conditions. Still-frame 35-mm camera with automatic exposure control and heated magazines were employed. Magnetometers were used as sensing elements to actuate the camera. The system was designed so that the camera motor would run continuously to reduce lag time between trip signal and first exposure to 25 milliseconds. Failure in the camera gear train and extremely high rates of false alarms at the sites under surveillance, were prime reason for early cancellation of the project. It is recommended that a video type system with continuous exposure and erasure be employed in future surveillance projects of this nature. In this case, the system would shut down on vehicle contact with the impact attenuator.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Vehicle Behavior Under Real Conditions at Impact - Attenuation Devices


    Contributors:

    Publication date :

    1975


    Size :

    21 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Reusable Impact Attenuation Devices

    Carney, J. F. / Faramawi, M. I. / ASME et al. | British Library Conference Proceedings | 1995


    Impact Attenuation Devices for Racing

    Fitch, J. / Goodwin, C. / Alberson, D. C. et al. | British Library Conference Proceedings | 1998


    Impact attenuation devices for racing

    Fitch,J. / Goodwin,C. / Alberson,D.C. et al. | Automotive engineering | 1998


    Impact Attenuation Devices for Racing1

    Goodwin, Carl / Bullard, D. Lance / Alberson, Dean C. et al. | SAE Technical Papers | 1998


    Low Maintenance, Reusable Impact Attenuation Devices

    Carney, J. F. / Statens vag- och transportforskningsinstitut / Transportation Research Board; U.S. | British Library Conference Proceedings | 1996