CO Issues
The conformity regulations require transportation
project-level CO hotspot analyses.
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Publications

"A Reevaluation of Carbon Monoxide: Past Trends, Future Concentrations, and Implications for Conformity 'Hot Spot' Policies." Journal of the Air Waste Management Association 52 (9), 1012-1025. 2002. D. Eisinger, S. Kellie Dougherty, D. Chang, T. Kear, P. Morgan. (abstract)

"Observations and Model Simulations of Carbon Monoxide Emission Factors from a California Highway," Journal of Air and Waste Management Association, 51 (1): 121-132. 2001. A.E. Held, D. Chang, D. Niemeier. (abstract)

"A New Statistical Framework for Estimating Localized CO Concentrations," ASCE Journal of Transportation Engineering, 126 (5): 426-434. 2000. Y. Meng, D. Niemeier. (abstract)

"Project-level Carbon Monoxide Hot-Spot Analysis for Level of Service D Intersections," Transportation Research Record, No. 1641, Transportation Research Board, Washington DC. 1998. Y. Meng, D. Niemeier. (abstract)

Research Reports

"CO and Children's Exposure," June, 2001.

"CO Re-evaluation Report," January, 2001.
"Transportation Project-level Carbon Monoxide Protocol User Workbook UCD-ITS-RR-98-9," prepared for the California Department of Transportation, UC Davis-Caltrans AQ Project Report Series, Davis, CA. 1998.
"Transportation Project-Level Carbon Monoxide Protocol, UCD-ITS-RR-97-21," December, 1997. V. J. Garza, P. Graney, D. Sperling, D. Niemeier, D. Eisinger, T. Kear, D. Chang, Y. Meng. For downloadable copies: http://www.dot.ca.gov/hq/env/air/pages/coprot.htm

Software
CL4: A User-friendly Interface for the CALINE4 Model for Transportation Project Impace Assessments. Zip File, June, 2001.

User's Guide for CL4: A User-friendly Interface for the CALINE4 Model for Transportation Project Impace Assessments. User Guide, June, 1998.

Transportation Project-Level Carbon Monoxide Protocol User Workbook. June 1998.
UCD authored the CO protocol to simplify hotspot analyses.
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