MOBILE 4 EXHAUST EMISSION FACTORS AND INSPECTION/MAINTENANCE BENEFITS FOR PASSENGER CARS

The MOBILE4 Tech IV Credit Model is used to estimate the emission factor equations, the effects of Inspection and Maintenance (I/M) programs, and the bag fraction equations for 1981 and later passenger cars. The model's results are then stored in the EPA MOBILE4 emission factor model database. The report describes the development , use and results of the Tech IV model. It also documents the normalized bag fractions, high altitude emission factors, biennial I/M credits, and idle emissions I/M credits used in MOBILE4.

• Corporate Authors:

  Environmental Protection Agency

  Standards Development & Support Branch, 2565 Plymouth Road
  Ann Arbor, MI  United States  48105
• Authors:
  • GLOVER, E L
  • BRZEZINSKI, D J
• Publication Date: 1989-8

Media Info

• Pagination: 66 p.

Subject/Index Terms

• TRT Terms: Air quality management; Databases; Exhaust gases; Inspection; Maintenance; Mathematical models; Pollutants
• Uncontrolled Terms: Models
• Old TRIS Terms: Exhaust emission control
• Subject Areas: Highways; Maintenance and Preservation; Safety and Human Factors; Vehicles and Equipment; I80: Accident Studies;

Filing Info

• Accession Number: 00494284
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA/AA/TSS/IM-89/3
• Files: TRIS
• Created Date: May 31 1990 12:00AM