EXPLORING THE OPPORTUNITIES OF OPEN SOURCE DATA USE IN CREATION 3D PROCEDURAL CITY MODELS

Two dimensional (2D) Geographic Information System (GIS) data structured with required attribute information can be realistically visualized in three dimension (3D) by using procedural modeling techniques. The procedural model consists of a sequence of parameterizable procedures and represents the object construction process. In this study, the usability of the open source data for creating 3D procedural city models were examined by applying the technique in two different study area located in London and Istanbul. For this purpose, 3D city models were produced using 2D vector data of OpenStreetMap, digital elevation model of "Shuttle Radar Topography Mission" (SRTM) and city landmark models provided by Google 3D Warehouse. As a result of this study, the production of a 3D city model and its results were evaluated by using open and crowd-sourced GIS data as an alternative to today's widely used and very overcosting spatial data production methods.