MOBILE is EPA's highway vehicle emissions model for predicting gram-per-mile emissions of hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), carbon dioxide (CO2), particulate matter (PM), and toxics from cars, trucks, and motorcycles under various conditions. The current version of the model (MOBILE6.2) was released in 2004.
Policy & Guidance
- MOBILE6 Implementation Experience (June 2005) - FHWA, in conjunction with the Association of Metropolitan Planning Organizations (AMPO) Air Quality Subcommittee, worked with a group of MPOs to document their experience in applying MOBILE6 in the conformity process. Thus purpose of the study is to provide an understanding of what steps these organizations took to prepare for use of the new MOBILE model and to identify potential training and technical assistance needs. Specifically, this study documents how MPOs are implementing MOBILE6, what data are being collected locally, and how data are being collected and identifies implementation issues that arose during the transition to MOBILE6.
- Screening Procedures for Project-Level Hotspot Analysis (or PDF, 244KB)(April 2004) - FHWA Resource Center paper that provides a summary of project-level CO screening procedures developed and adopted by transportation agencies throughout the nation, highlights several innovative practices, and offers recommendations for developing refined screening protocols
- Sensitivity Analysis of MOBILE6 Motor Vehicle Emission Factor Model (or PDF, 1.24MB) - FHWA Resource Center paper that provides a basic evaluation of the MOBILE6 model behavior under various condition
PDF files can be viewed with the Acrobat® Reader®