The Texas Guide to Accepted Mobile Source Emission Reduction Strategies (MOSERS)

Module 2: Methodologies

The third edition of the Texas Guide to Accepted Mobile Source Emission Reduction Strategies was developed by the Texas A&M Transportation Institute (TTI) for the Texas Department of Transportation (TxDOT) as part of the TTI-TxDOT “Air Quality and Conformity” Interagency Contract.

This guide is an updated and enhanced version of the 2007 edition of the Texas Guide to Accepted Mobile Source Emission Reduction Strategies, and is designed for use among Texas transportation practitioners who are undertaking air quality planning. The intent of this guidebook is to provide guidance and resources for practitioners to understand and evaluate mobile source emissions reduction strategies. Additionally, the process involved to compute the cost effectiveness of the emissions reduction strategies will be discussed. This is an important step because cost effectiveness is typically used as a criterion to rank projects that have been submitted by agencies for funding purposes.

This third edition of the guidebook consists of two modules. Module 1 provides an overview of transportation and air quality planning, and discusses key topics relating to federal regulations, transportation conformity, mobile source emissions modeling, and transportation control measures. Module 2 contains a comprehensive set of analysis methods that can be used in the evaluation of emissions reductions achievable through the adoption of mobile source emission reduction strategies (MOSERS). This guidebook contains updated graphics, easy-to-navigate charts and comprehensive resource listings to help the reader gain an understanding of the subject matter and identify other resources for further reading.