Improved Emission Estimation Techniques for Computerized Networks: A User's Manual

摘要

This report summarizes the software revisions and program set-ups for implementing an improved method to estimate transient operation VMT on UTPS highway networks. Utilizing existing framework of UTPS, this report provides a description of the software that permits the analyst to more accurately estimate and test the sensitivity of a revised application of emission rates to specific components of the typical vehicle trip. These include subroutine documentation and deck set-ups for UROAD, HNET, UMATRIX AND MOBILE1 computer runs required in the procedure. This application, as set up, provides for transient mode VMT calculations for all VMT that is within 505 seconds of the origin zone or trip start.