Heavy-duty vehicles are major contributors to ambient levels of particulate matter and oxides of nitrogen in urban air. Implementation of an Inspection and Maintenance (I/M) program for heavy-duty diesel vehicles has been impeded by the technical difficulty of developing a suitable emissions test, and by uncertainty as to the magnitude of the problem and of the cost-effectiveness of an I/M program. The objectives of the study were: to quantify the problem of excess emissions from heavy-duty diesel vehicles; to develop preliminary I/M procedures for these vehicles; and to estimate the costs and cost-effectiveness of implementing an I/M program for heavy-duty diesels. To quantify the problem of excess emissions, a computer model of total and excess emissions from heavy-duty diesel vehicles was developed. The purpose of these procedures is to identify heavy-duty diesel vehicles that are producing excessive pollutant emissions.


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    Titel :

    Heavy-Duty Diesel Vehicle Inspection and Maintenance Study. Volume 1. Summary Report; Volume 2. Quantifying the Problem; Volume 3. Development and Validation of I/M (Inspection and Maintenance) Test Procedures; Volume 4. I/M Program Design and Cost-Effectiveness Analysis


    Beteiligte:
    C. S. Weaver (Autor:in) / R. F. Klausmeier (Autor:in)

    Erscheinungsdatum :

    1988


    Format / Umfang :

    670 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






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