Some Issues in the Statistical Analysis of Vehicle Emissions
Date Published |
09/2000
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Publication Type | Journal Article
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Authors | |
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LBL Report Number |
LBNL-46115
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Abstract |
This paper presents some of the issues that complicate the statistical analysis of real-world vehicle emissions and the effectiveness of emissions control programs. The following issues are discussed: 1) inter- and intra-vehicle emissions variability, 2) skewness of the distribution of emissions from in-use vehicles, 3) the difficulty of obtaining statistically representative vehicle samples, 4) the influence of repeat testing on only a subset of the vehicle fleet, and 5) differences among common test methods and pollutant measurement devices. The relevance of these issues is discussed in light of three regulatory purposes: testing the compliance of in-use vehicles with certification standards, evaluating the effectiveness of vehicle inspection and maintenance programs, and estimating emissions inventories for air quality modeling and compliance planning. A brief history and description of common vehicle emissions tests is also provided. |
Journal |
Journal of Transportation and Statistics
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Volume |
3
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Year of Publication |
2000
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Issue |
2
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Pagination |
1-14
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ISSN Number |
1094-8848
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URL | |
Refereed Designation |
Refereed
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Organizations | |
Research Areas | |
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