Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title MOBILE4 Emission Factor Model: Source Code (One Version Mixed Case, One Version Upper Case), Input Files for Example Runs, and High-Altitude Area I/M Credits (for Microcomputers).
Author Newell, T. P. ; Parsons, R. ;
CORP Author Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div.
Publisher 1 Mar 89
Year Published 1989
Report Number EPA/SW/DK-89/030;
Stock Number PB89-170211
Additional Subjects Models-Simulation ; Exhaust emissions ; Motor vehicles ; Hydrocarbons ; Carbon monoxide ; Nitrogen oxides ; Altitude ; Diskettes ; Automobile exhaust ; Emission factors ; US EPA ; L=Fortran ; H=IBM PC
Library Call Number Additional Info Location Last
NTIS  PB89-170211 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/24/1989
Collation 3 diskettes
MOBILE4 is a computer program that calculates emission factors for hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) from highway motor vehicles. MOBILE4 calculates emission factors for eight individual vehicle types, in two regions of the country (low- and high-altitude). The emission factors depend on various conditions such as ambient temperature, fuel volatility, speed, and mileage accrual rates. MOBILE4 will estimate emission factors for any calendar year between 1960 and 2020 inclusive. The 20 most recent model years are considered in operation in each calendar year. MOBILE4 supersedes MOBILE3. Relative to MOBILE3, MOBILE4 incorporates several new options, calculating methodologies, emission control regulations, and internal program designs. Software Description: The software is written in the FORTRAN language for use on an IBM PC or compatible machines using MS-DOS operating system. It requires a minimum of 920K of memory.