Since the late 1960's the California Department of Transportation has used wood posts and timber poles, Classes 1-6, with drilled holes near the bases as breakaway supports for dual-support roadside signs. Due to the recent rapid increase in the lightweight car population, crash tests were conducted on these designs to determine whether they met current performance criteria. Timber pole supports are no longer used on new construction in California. A laminated wood veneer box section post 7 7/8 in. x 14 7/8 in. with saw cuts in the webs was impacted with a 2205 lb vehicle at 19.2 and 58.4 mph and met all test criteria. The design has been adopted as a standard in California.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Vehicular Impact Tests of Breakaway Wood Supports for Dual-Support Roadside Signs


    Beteiligte:
    E. F. Nordlin (Autor:in) / J. R. Stoker (Autor:in) / R. L. Stoughton (Autor:in)

    Erscheinungsdatum :

    1981


    Format / Umfang :

    189 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Breakaway Signs and Vandalism

    British Library Online Contents | 2004


    Design and Simulation of Large Breakaway Signs

    Reid, John D. | Online Contents | 1998


    Design and Simulation of Large Breakaway Signs

    Reid, J. D. / Paulsen, G. W. | British Library Online Contents | 1998



    Nonlinear Finite-Element Analysis of Dual Support Breakaway Sign

    Paulsen, Gene / Reid, John | Transportation Research Record | 1996