75C - PH - BRISTOL EIR FROM WARNER TO ST. ANDREW

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I DKS Associates 1 5. Specifc Plan Impact L 5.1 TRIP GENERATION t The Bristol Street Specific Plan recommends redeveloping the land uses along Bristol Street in both upgrading and slightly decreasing the intensity of the existing land use by developing parks and landscaping along the study area. The overall trip generation for the recommended plan must account for the removal of the existing land uses, and the improvement of new land uses. Trip generation rates are used to relate the type and size of a specific development to the number of person and vehicle trips originating at or destined for the study area without regard for directional orientation_ The trip generation itself estimates the number of trips originating from or destined to the proposed study area by land use for each traffic analysis zone. Each traffic analysis zone structure and its respective parcel numbers are shown in Figure 5 -1. The individual land use types by zones are shown in Table 5 -1. The following trip generation rates were used in the analysis as shown in Table 5 -2. The rates used in Table 5 -1 are based upon the observed tripmaking characteristics of each land use type documented in San Diego Traffic Generators published by the San Diego Association of Governments. In order to adequately represent the change in traffic volume, the total trips generated by the Bristol Street Specific Plan were estimated and then deducted from the total trips generated without the Specific Plan. Thus, the difference in traffic volume due to the redevelopment was calculated representing the net change in projected future growth in tripmaking under the proposed scenario. These results are shown in Table 5 -3. For the entire study area, approximately 7,000 daily trips are generated by the site which is a reduction from 16,350 daily trips generated without the Specific Plan. For the PM peak hour, which is the critical of the two peak hours involved, the projected difference in total trips was a reduction of 924 trips compared to the future condition without Specific Plan. For the AM peak period, the difference in total trips was a reduction of 568 trips. Thus, the Specific Plan actually enhances the operation level by reducing the total morning and afternoon peak hour traffic volumes by 1,492 trips. 5.2 TRIP DISTRIBUTION AND ASSIGNMENT The net difference in total trips estimated due to the Bristol Street Specific Plan redevelopment was estimated, distributed and assigned to all 13 intersections in the study area_ 2b657.P90223x0..Rpr 23 75C -557