Mobile emission calculations for the North Carolina UAM project
Conference
·
OSTI ID:197399
- North Carolina Dept. of Environment, Health and Natural Resources, Raleigh, NC (United States)
In development of highway mobile emissions for use in the North Carolina Urban Airshed Model (UAM) project, the Division of Environmental Management (DEM), Air Quality Section focused on the following aspects of the highway mobile emission calculations: (1) a method to estimate the inspection and maintenance (I/M) program influence in any of the North Carolina counties, the concept of I/M fractions was developed and implemented using North Carolina Accident Data from 1988--1992; (2) use of the daily rather than hourly emission factors in calculation of highway mobile portion of UAM emissions inventories based on a comparative analysis of daily and hourly emission factors for a test case; (3) North Carolina specific vehicle age distribution developed to be used in Mobile5a runs to improve accuracy of highway mobile emission estimates. This paper details the rationale for exploring these parameters as well as the justification for the final decision on the mobile emission calculations.
- OSTI ID:
- 197399
- Report Number(s):
- CONF-9405167--
- Country of Publication:
- United States
- Language:
- English
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