Assessment of Out-Of-State Heavy-Duty Truck Activity Trends in California
This page finalized September 19, 2007
Chair’s Air Pollution Seminar
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Monday, October 1, 2007
1:30 p.m. - 3:30 p.m.
Coastal Hearing Room, Second Floor
1001 I Street, Sacramento
This
event is being Webcast, click here to view
Webcast viewers: Please send your
questions during broadcast to: coastalrm@calepa.ca.gov
Presentation is available at this link
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Assessment of Out-Of-State
Heavy-Duty
Truck Activity Trends in California
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Nicholas Lutsey
(Ph.D. Candidate, Co-Principal Investigator)
Transportation Technology and Policy
University of California Davis
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The California Air Resources Board emissions inventory estimates indicate that ambient air quality in several regions
of California is substantially affected by the exhaust emissions of diesel trucks, many of which may originate
and/or fuel out-of-state. Assessing the use of out-of-state fuel in California is important due to the potential
air quality impacts of differing fuel composition. Further, out-of-state trucks' characteristics, such as age,
influence emissions estimates. In summer 2006 researchers from the Institute of Transportation Studies, University
of California Davis (ITS-Davis) conducted an interview survey of truck drivers to quantify the use of out-of-state
fuel and characterize the activity of out-of-state trucks in California.
The survey results indicate that 25-28% of Class 8 heavy-duty truck mileage in California is fueled out-of-state.
Out-of-state heavy-duty diesel trucks in California account for 14-17% of the operating Class 8 truck population
and 26-29% of the Class 8 truck mileage on California roads. These effects are disproportionately concentrated
in three air basins - the South Coast, the Sacramento Valley, and the San Joaquin Valley - with considerable ambient
air quality standard attainment issues. |
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| Nicholas Lutsey, is a Ph.D. Candidate and Co-Prinipal Investigator (in colaboration with C. J. Brodrick,
Ph.D., Co-Principal Investigator, UC Davis) on this project, as he conducted much of the truck driver surveying
and data analysis. He is presently completing his Ph.D. in Transportation Technology and Policy at the University
of California Davis. He holds a Bachelor of Science in Agricultural and Biological Engineering from Cornell University.
His master's thesis was a quantitative assessment of truck idling behavior and the use of fuel cells as auxiliary
power units (APUs) in heavy-duty trucks as a strategy for reducing emissions. His findings contributed to new industry
initiatives and both local and federal policy on diesel trucks. After completing his thesis, he held an internship
with the California Air Resources Board and later took on a project to analyze the 2005 greenhouse gas agreement
between the Canadian government and automakers. For his dissertation, which is supported by a University of California
Transportation Center (UCTC) Fellowship, he is creating an analytical tool for evaluating strategies to reduce
vehicle-related greenhouse gas emissions. Nicholas Lutsey was the Outstanding Student of the Year for the UC Davis
Sustainable Transportation Center for 2006. |
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For more information on this
Seminar please contact:
Hector Maldonado at (916) 445-6015 or send email to: hmaldona@arb.ca.gov
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For a complete listing of
the ARB Chairman's Series and the related documentation for each one of the series please check this page
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