Standard: API 4108 VOL II

THE ECONOMIC EFFECTIVENESS OF MANDATORY ENGINE MAINTENANCE FOR REDUCING VEHICLE EXHAUST EMISSIONS VOLUME II MODELING OF INSPECTION/MAINTENANCE SYSTEMS

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Scope:

INTRODUCTION

The objectives of this project were to determine the effect of mandatory vehicle inspection and maintenance on vehicle exhaust emissions and to identify the more cost effective procedures for diagnosing and restoring to specification those maladjusted or malfunctioning engine components which most significantly affect emissions. This volume describes the development of the inspection/maintenance (I/M) economic effectiveness model and the study results. The model provides a consistent and systematic framework for evaluating the economic effectiveness of inspection and maintenance procedures using data developed in the experimental portion of the study (see Volume III).

The model is sensitive to the following variables:

• The total and discounted investment costs, annual inspection costs, system operational costs, vehicle maintenance costs, and user inconvenience costs.

• The technological complexity introduced into the inspection/ maintenance program with emphasis on the degree of inspection automation.

• Private, public or mixed ownership/management of inspection and maintenance stations.

• Inspection Interval, the number, size and locations of inspection stations; and manpower including skills and training requirements.

• The existing voluntary maintenance program effectiveness.

The study Involved the following work sequence:

• A literature survey was made and direct discussions were held with automobile manufacturers and automobile associations to acquire applicable cost and operational data and to Identify candidate inspection/maintenance procedures.

• Statistical evaluations of acquired data were performed to develop models of Inspection procedures, maintenance effectiveness and deterioration and capital costs.

• An internally consistent system model was constructed using both contract developed and acquired data to evaluate the economic effectiveness of four candidate inspection/maintenance strategies.

Organization: American Petroleum Institute
Document Number: api 4108 vol ii
Publish Date: 1972-01-01
Page Count: 101
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: NO
Status: Inactive
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