This article describes the development of a novel tool for the design of environmentally optimized area navigation (RNAV) approach procedures. This new development is an extension of a tool called NOISHHH which was developed earlier for the analysis and design of noise abatement procedures around airports. The NOISHHH tool is essentially a framework that combines a noise model, a geographic information system, an emission inventory model, and a dynamic trajectory optimization algorithm to generate flight paths that minimize the noise impact in the vicinity of an airport. The RNAV-extended version of NOISHHH offers the possibility to calculate routes that can be programmed into the flight management system currently available in many aircraft cockpits. The capabilities of the RNAV-compliant version of NOISHHH are illustrated in an example scenario based on an instrument approach to one of the runways of Schiphol airport in the Netherlands.
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