Police check for 12-hr. working day in 5-min. periods gives complete data of movement through busy loop district; prepunched tabulating card used in checking traffic; postal card and emergency card issued in check to drivers leaving Loop district who had entered before 7 A. M.; work went through central control office; remedial action planned.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Chicago checks traffic using new card system


    Weitere Titelangaben:

    Elec. Traction


    Erschienen in:

    Erscheinungsdatum :

    1929


    Format / Umfang :

    3 pages


    Anmerkungen:

    5 Figs.


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    The Chicago traffic signal system

    Shaffer, C.S. | Engineering Index Backfile | 1928



    Traffic safety in Chicago

    Michalski, C.S. | Engineering Index Backfile | 1960


    Chicago regional traffic survey

    Engineering Index Backfile | 1932


    Chicago regional traffic survey

    Engineering Index Backfile | 1932