| Abstract: |
The New York City Department of City Planning has been working on creating 3D GIS-based representations of its zoning regulations around the city's major airports, John F. Kennedy International Airport and LaGuardia Airport. Building heights in areas around these airports are controlled by several restrictive surfaces that are described in the text of the city's Zoning Resolution. These surfaces include inclined planes beginning at runway ends, a horizontal surface in an area over each airport, transitional surfaces, and others. To aid in our visualization and analysis efforts we developed 3D GIS and raster datasets to model the current restrictive surfaces around each airport. We then applied these data in assessing the effects of the regulations on underlying zoning district building height limits and the heights of both existing and proposed buildings. Topographical data was also included in the analysis. This presentation will include a description of the methodology used to create the 3D GIS data, an explanation of the analyses performed, and a short demonstration of the various data visualization tools used in this project. |