Three elementary cases, with ramp metering used to reduce delay by diverting traffic around bottlenecks, are analyzed. In these cases ( a) travel times on an alternate route bypassing the bottleneck are insensitive to flow on the alternate route, ( b) the alternate route is undersaturated but travel times are sensitive to flow, and ( c) the alternate route is oversaturated. Travel time equilibria and traffic assignments are relatively straightforward in all cases provided that equilibria in Cases b and c are assumed to be approximate and traffic assignments are based on drivers’ expectations about traffic conditions prevailing at particular times of day. A metering strategy intended to minimize delay is proposed. This strategy is expressed in terms of the order in which metering is initiated at different ramps and is similar to one previously proposed to maximize output to exits upstream of the bottleneck.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Metering Ramps to Divert Traffic around Bottlenecks


    Subtitle :

    Some Elementary Theory


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2005-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Metering Ramps to Divert Traffic Around Bottlenecks: Some Elementary Theory

    National Research Council (U.S.) | British Library Conference Proceedings | 2005


    Metering Ramps to Divert Traffic Around Bottlenecks: Some Elementary Theory

    Banks, James | Transportation Research Record | 2005



    Macroscopic traffic flow changes around ramps

    van Beinum, Aries / Hovenga, Marco / Knoop, Victor et al. | Taylor & Francis Verlag | 2018

    Free access