Yellowstone Over-Snow Vehicle Emission Tests 2012: Summary Vehicle Data and Fleet Estimates for Modeling

by John D. Ray, Gary Bishop, Brent G. Schuchmann

This report provides summary tables of on-road emissions and fleet averages of over-snow vehicle emissions for EIS scenario modeling. Emission data from newer model snowcoaches and snowmobiles were obtained by direct tailpipe measurements and are now available for modeling. A comparison is made with prior data. Summary values for different categories are provided that can be used in the modeling. Fleet averages are calculated based on snowcoach categories and the estimated number of vehicles in each category. The fleet average emissions are provided so that each of the alternatives in the SEIS can be modeled.

54 pages, Paperback

First published August 29, 2013

About the author

John D. Ray is the Herbert Thompson Reader in Egyptology in the University of Cambridge and Fellow of Selwyn College. He previously worked in the British Museum and has been a Visiting Professor at Yale and the University of Chicago. He writes regularly for The Times (London), TLS, and The London
Review of Books. A well-known radio commentator, he presented the recent BBC-TV documentary "Ramesses the Great."