Res96 12819 - Laserfiche WebLink

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current Airport Land Use Plan and approved by the FAA and Caltrans Aeronautics Program). The RPZ is intended to enhance the protection of people and property on the ground from aircraft either landing short of the runway or overrunning the runway end on take-off. (c) In 1983, Redwood Shores, Inc. voluntarily reduced heights of buildings within two flight corridors at San Carlos Airport to 50 feet above ground level (60 feet MSL). The flight corridors are incorporated into the City's General Plan. The Project does not conflict with the flight corridors. (d) Approximately 8.3 acres, or 18.4 per cent of the Project site, is located within the Inner Turning Zone (safety zone 3). Within this area, the 4-story, 140,000 square foot office building would cover approximately .83 acre of ground area. The remaining portion of the Project site within safety zone 3 would be devoted to parking and landscaping. The probability of any one-acre site located in safety zone 3 being the site of an accident is .11 per cent, or 1 in 909. In other words, out of 909 aircraft accidents, only one would have the potential of affecting any one specific one-acre location within safety zone 3, including the office building to be located in the Project site. This is not a statistically significant probability, in light of the accident rate of 1-3 accidents per year, on average. (e) The Traffic Pattern Zone (safety zone 6) incorporates the remaining 36.7 acres (81.6%) of the Project site, including the 7, 8 and 10-story office buildings. Only 3.44 acres of the portion of the Project site located in the Traffic Pattern Zone is covered by occupied structures. The potential for an accident involving any portion of the site with an occupied structure is on the order of 0.07 per cent, or one accident out of 1,429 accidents. This does not represent a statistically significant accident potential, in light of the accident rate of 1-3 accidents per year, on average. (f) Because the traffic pattern at San Carlos Airport is only on one side, it could be argued that these accident rates should double. Even if this argument is accepted, the potential for accidents affecting the site would still be extremely low. (g) The Traffic Pattern Zone includes the 1 O-story building. Within this zone, the 1993 Airport Land Use Planning Handbook states that the potential for aircraft accidents is relatively low and the need for land use restrictions is thus minimal. Only very large assemblies of people -- 150 people or more per gross acre -- are recommended to be avoided. At a maximum average density of about 94 people per gross acre, the density of the Project is well within the criteria established in the Handbook for this zone. -29- 7/11/96 9:56 AM