The 5-City study embodied two major elements. These are (1) a demonstration of the 'low-cost' application of the Urban Airshed Model (UAM) and, (2) the use of the model to assess peak ozone impacts in several cities (New York, St. Louis, Atlanta, Dallas-Fort Worth and Philadelphia) due to various emissions strategies. The Urban Airshed Model (UAM) is EPA's preferred model for conducting ozone air quality simulation analyses. The project is documented in the Summary Report and a set of 5 topic reports. The Summary Report condenses key material from each report and synthesizes key results and conclusions for the entire study. Reports 1 and 2 address the 'low-cost' testing of the UAM. Reports 3-5 document the results of the emissions strategy analyses. The preliminary overview provides a synopsis of the project structure and principal findings.

"April 1990." EPA project officers: Richard D. Scheffe, John C. Chamberlin.

pt. 1 Summary report / by Richard D. Scheffe -- pt. 2 Demonstration of low-cost application of the model to the city of Atlanta and the Dallas-Fort Worth Metroplex region / by Ralph E. Morris [and others] ; Systems Applications, Inc. -- pt. 3 Evaluation of base case model performance for the cities of St. Louis and Philadelphia using rich and sparse meteorological inputs -- pt. 4 Low-cost application of the model to Atlanta and evaluation of the effects of biogenic emissions on emission control strategies -- pt. 5 A low-cost application of the urban airshed model to the New York Metropolitan area and the city of St. Louis -- pt. 6 Low-cost application of the model to future-year SIP control and alternative fuel strategies for Dallas-Fort Worth, Atlanta, Philadelphia, and St. Louis: Vol. 1: Results -- pt. 7 Vol. 2: Appendices B-II.