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U.S. Department of Energy
Office of Scientific and Technical Information

Calculating carbon monoxide emissions from vehicle traffic in Phoenix

Conference ·
OSTI ID:6947143
;  [1]
  1. Systems Applications, Inc., San Rafael, CA (US)

Ambient carbon monoxide concentrations in the Phoenix area have exceeded the standard of 9 ppm for an 8-hour average. Like many urban areas in the United States, Phoenix did not meet the December 31, 1987 deadline for attainment of the carbon monoxide (CO) and ozone National Ambient Air Quality Standard (NAAQS) as mandated in the Clean Air Act. Elevated CO emissions are primarily produced by vehicles. To aid in preparing workable solutions to CO problems, Phoenix, as well as Denver, have recently applied more advanced air quality modeling techniques, such as the urban airshed model, to assist in evaluating alternative control strategies to reduce CO emissions. This paper describes the logic of the TRFCONV program as well as the adjustments to the spatial and temporal inputs to the traffic forecasting model that were needed to accurately characterize the CO emissions inventory for alternative control scenarios in Phoenix.

OSTI ID:
6947143
Report Number(s):
CONF-880679--
Country of Publication:
United States
Language:
English