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Only 3.44 acres of the portion of the Project site located in the Traffic Pattem <br /> Zone is covered by occupied structures. The potential for an accident involving <br /> any portion of the site with an occupied structure is on the order of 0.07 per cent, <br /> or one accident out of 1,429 accidents. This does not represent a statistically <br /> significant accident potential, in light of the accident rate of 1-3 accidents per year, <br /> on average. <br /> <br /> (f) Because the traffic pattern at San Carlos Airport is only on one side, it <br /> could be argued that these accident rates should double. Even if this argument is <br /> accepted, the potential for accidents affecting the site would still be extremely <br /> low. <br /> <br /> (g) The Traffic Pattern Zone includes the 1 O-story building. Within this zone, <br /> the 1993 Airport Land Use Planning Handbook states that the potential for <br /> aircraft accidents is relatively low and the need for land use restrictions is thus <br /> minimal. Only very large assemblies of people -- 150 people or more per gross <br /> acre -- are recommended to be avoided. At a maximum average density of about <br /> 94 people per gross acre, the density of the Project is well within the criteria <br /> established in the Handbook for this zone. <br /> <br /> (h) Because safety area land use density restrictions are more effective when <br /> applied at a general plan or large development level, measurement on a gross acre <br /> basis is most appropriate. On this basis, the 4,000 people expected to occupy the <br /> 45-acre site under maximum occupancy conditions results in an average density <br /> figure of 89 people per gross acre. This is well within the density criteria <br /> established in the Handbook. <br /> <br /> (i) No portion of the Project is located in the San Carlos Airport approach <br /> zone shown in the CLUP. <br /> <br /> (j) The Airport Study evaluates risk factors associated with air transportation <br /> injuries, and supports the conclusion that the risk is low. In statistical terms, an <br /> individual is over 100 times more likely to die from an unintentional injury, or <br /> almost 60 times more likely to die from injuries sustained in an automobile <br /> accident, than in an aviation-related accident. Involvement in a fatal general <br /> aviation accident is even less likely. <br /> <br /> -30- <br />GIDEIRFD.DOC <br />7~23/96 5:44 PM <br /> <br /> <br />