Agenda Packets - 1984/02/27 - Laserfiche WebLink

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177 o Alternative B. The existing Runway 17-35 threshold would be relo- cated 1,70 feet to the north, and the runway length would be reduced to a total of 4,000 feet. It would serve as a crosswind runway. Existing Runway 11-26 would be lengthened 1,600 feet to the east, for a total length of 4,000 feet, would become the airport's primary runway, and would have an ILS installed with precision approaches from the east. A new parallel runway 3,200 feet long would be constructed 500 feet to the north. It would be a visual runway, and - would serve for flight training operations, o Alternative C. This alternative includes parallel runways in both orientations, providing equal capability, maximum operating flexi- bility, and greatest potential for minimizing aircraft noise expo- sure. The north -south parallel runways would be in the same loca- tion as those for Alternative A. The east -west parallel runways would be in the same location as those described for Alternative B. // The primary runway in the east -west direction would include an ILS with approaches from the east. Parallel runways are proposed in the alternatives to increase operational safety by physically separating high-performance aircraft and itinerant operations from single -engine training activity. Potential conflicts both in the air and on the ground can be avoided and the airport can operate more safely and efficiently than if all traffic is mixed on a single runway. The parallel runway also has Important environmental benefits in that it places the repetitive training activity over areas that are less densely populated, i.e., to the north of the airport for Alternatives B and C, and between the existing runway and 1-35 and north of relocated T.H. 10 for Alternatives A and C. All of the alternatives have been designed to reduce noise exposure to the south In Mounds View. This is accomplished by moving the southerly threshold of the runways to the north either 1,700 feet or 2,600 feet. This shift will significantly raise the altitude of aircraft over the ' community and could, in fact, virtually eliminate overflights.