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Trip Distribution and Assignment <br />Distribution and assignment of trips generated by the Fashion <br />Square project was obtained from the regional model. Figure 24 presents <br />the 1995 travel forecasts obtained from the TSIP/SATC Model for maximum <br />development of the Main Street/Town and Country area. A "selected link <br />analysis" was performed on the highway assignment for the critical <br />afternoon peak period. Two freeway flow conditions were examined. <br />First, the freeway was treated as if sufficient capacity were available, <br />and/or ramp metering were provided, which permitted the freeways to <br />operate at near optimum flow rates, i.e., 35-45 miles per hour. <br />Secondly, the freeway assignment resulting from a congested (stop and <br />go) condition on the freeways was examined. <br />The typical trip length for travel associated with Fashion <br />Square was also investigated. Analysis shows that 57.2 percent ofithe <br />trips to and from Fashion Square will be less than 5 miles in length. <br />Similarly, 95.9 percent of all trips will remain within Orange County <br />whereas only 4.1 percent will travel to/from destinations beyond County <br />boundaries. This information is corroborated by the Orange County <br />Transportation Commission's employment study of Main Street which <br />revealed 41 percent of existing employees live within five miles and 84 <br />percent live within a 10 mile radius of the Fashion Square. With <br />several commercial centers located close by, it appears reasonable that <br />most shopping trips will be less than five miles in length. The <br />combination of short shopping trips with the employment based trips show <br />good correlation between the model output and survey data and provides <br />reasonable assurance that the model's forecast of trip lengths is <br />reliable. <br />The distribution of inbound and outbound trips from Fashion <br />Square during the critical PM peak period is presented in Table 11. <br />This table shows that 72.3 percent of the highly directional outbound <br />peak period Fashion Square traffic is oriented directly to the freeways. <br />This demonstrates the importance of providing direct freeway access. from <br />the site. <br />75D-f34 <br />