COSTA MESA, IRVINE, NEWPORT BEACH, & AUSTIN-FOUST

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provide some general cost parameters for evaluating potential funding mechanisms. 4. Post-2010 Tralrc Forecasts The traffic model used in the Five -City study has a Post-2010 version that can be prepared for use without a major work effort. This model will be used for identifying peak hour intersection volumes in a similar manner to that carried out for 1999. The peak hour forecast data will be utilized to prepare intersection capacity utilization (ICU) values for this long-range time period. A preliminary set of lane configurations will be prepared for each intersection to show the type of improvements that may be needed: These configurations will be preliminary in nature, and will not be subject to a detailed feasibility and cost analysis. 5, Final Report and Presentations The results of the traffic analysis will, be written into a final report, and up to five presentations will be given to summarize the findings. COST ESTIMATE The traffic model area includes the City of Tustin, although the short-range version of the model will need to be set up to process intersections in Tustin. Assuming availability of traffic count and land use data, this is estimated to cost around $3,000. The additional cost for carrying out the above five work items with an expanded study area that includes intersections in Tustin is $6,000. Table 1 summarizes the estimated costs for the scope of work described here. It includes the City of Tustin as a participant in this next phase of the study. Additional costs for each city can be summarized 'as follows: Total work effort cost $49,000 Less funds remaining $25,000 Net Additional Cost $24,000 Cost per City: Tustin $9,000 Others $3,750 Four -City Traffic Study 3 Austin -Foust Associates, Inc.