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3 <br /> <br />CalEEMod separates the operational trip purposes into three categories: primary, diverted, and pass-by <br />trips. According to Appendix A of the CalEEMod User’s Guide, the primary trips utilize the complete trip <br />lengths associated with each trip type category. Diverted trips are assumed to take a slightly different <br />path than a primary trip and are assumed to be 25% of the primary trip lengths. Pass-by trips are <br />assumed to be 0.1 miles in length and are a result of no diversion from the primary route.5 Review of the <br />Project’s CalEEMod output files demonstrates that the trip purpose percentages are inconsistent with <br />the trip purpose percentages indicated by the DEIR (see excerpt below) (Appendix B, pp. 330, 391). <br /> <br />As you can see in the excerpt above, the model assumes a 3% pass-by percentage for the apartment <br />land use, 17% for the fast food restaurant without drive-through, 69% for the fast food with drive- <br />through, 79% for the high turnover (sit down restaurant), 76% for quality restaurant, and 76% for <br />regional shopping center. However, these values are inconsistent with the pass-by trips indicated by the <br />DEIR. Based on the DEIR’s Proposed Project Trip Generation table, the apartment and parking land uses <br />are not expected to generate any pass-by trips, the fast food restaurant without drive through is <br />expected to generate 17%, the fast food restaurant with drive-through is expected to generate 31%, the <br />high turnover (sit down) restaurant is expected to generate 21%, the quality restaurant is expected to <br />generate 22%, and the regional shopping center/retail land use is expected to generate 24% (5.14-11, <br />Table 5.14-5). By including primary trip percentages that are inconsistent with information provided in <br />the DEIR, the model may underestimate the Project’s mobile-related operational emissions and should <br />not be relied upon to determine Project significance. <br />Use of Incorrect Saturday and Sunday Trip Rates <br />Review of the Project’s CalEEMod output files demonstrates that the Saturday and Sunday trip rates <br />inputted into the model are incorrect. The number of daily trips, including pass-by trips, are indicated in <br />the DEIR (see excerpt below) (p. 5.14-11, Table 5.14-5). <br />• the apartment land use is estimated to generate 6,092 daily trips; <br />• the high-turnover sit down restaurant is expected to generate 2,740 daily trips; <br />• the retail land use is expected to generate 636 daily trips; <br />• the quality restaurant is expected to generate 2,067 daily trips; <br />• the fast casual restaurant is expected to generate 1,564 daily trips; <br /> <br />5 “CalEEMod User’s Guide, Appendix A: Calculation Details for CalEEMod.” SCAQMD, available at: <br />http://www.aqmd.gov/docs/default-source/caleemod/caleemod-appendixa.pdf?sfvrsn=2, p. 20