The variable speed limit (VSL) system is designed to display both the maximum and minimum speed boundaries based on measured traffic and environmental conditions. In addition, short driver information messages can be displayed to warn of downstream conditions. The VSL can be installed to operate independently (Isolated), in a series of stations (Linked), as a component of a larger management system (Integrated), and in the future as part of an 'In-Vehicle' component to provide all types of driver information (In-Vehicle). The analysis compares the four types of VSL systems to the existing 'fixed' speed limit system which can display only one speed for all conditions. The costs of the VSL equipment include its installation and maintenance, the costs of accidents include accident-induced delay costs, and time costs include time to traverse the section. A number of assumptions are made relating to projected accident rates, traverse time costs, and drivers' responses to the system.


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    Titel :

    Variable Speed Limit System Cost Benefit Analysis


    Erscheinungsdatum :

    1989


    Format / Umfang :

    42 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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