# Digital Information Tools for Urban Regeneration: Capital's Approach in Theory and Practice
## 3 Results: Classification of DT/IT for Urban Regeneration
Remote sensing (RS) technologies allow detecting and classification objects on Earth using satellite or aircraft-based sensor technologies and concerning the objects detected conclusions can be made about the economic activities, social, ecologic or spatial processes. Cultural and especially symbolic capitals are not easily detected from objects' spatial configuration and other physical characteristics. Google maps, OpenStreetMap are web mapping services, offering satellite imagery, aerial photography, street, built up and green areas maps, streets perspective views, real-time traffic conditions, route planning, etc. They can be edited by everybody, adding relevant information about objects of the Earth surface. Maps.It is an interactive Lithuanian online map website providing data from state databases in Lithuania, created on the basis of ArcGIS software. It is based on digital maps, vector geodatabases and GIS technologies. The content and geography of the maps are constantly filled in and updated, and a three-dimensional map of Lithuania is developed. The only difference that maps.It cannot be edited by everybody. These online maps provide us with information about the spatial capital that allows us deciding about the conditions for the developemnt of economic, social and ecologic capitals. The other online databases, like geoportal.lt, regia.lt, kvr.kpd.lt, tpd.lt, tpdr.lt, tpdris.lt, zeldynai.mapika.lt are thematic databases encompassing information about the spatial planning decisions, cultural heritage objects, vegetation and representing spatial, economic, ecologic and cultural capitals accordingly. The second group of digital tools represents digital environmental models that are important for the organization of information and analysis in different stages of the regeneration process (preparatory stage: objectives and tasks of planning, programme of works, feasibility studies, forecasting and etc., present state analysis, development of regeneration strategies, environmental impact assessment, elaboration of proposals, etc.) [19]. There are Digital Elevation Models (DEM), Digital Surface Models (DSM), Digital Terrain Models (DTM) used in GIS. A DSM represents the natural and built features on the Earth's surface and is useful for the 3D modeling in urban planning. DEM is the Earth's surface model without vegetation and man-made structures especially useful in hydrology, pedology, land use planning. DTM like DEM characterizes the shape of the bare-earth terrain but represents distinctive terrain features much better [20]. According to their specificity the models are important for the representation of spatial, ecologic and economic capitals. Digital Twin is a digital copy of a living or non-living physical object, represents both the elements and their dynamics [21] and is directly related with spatial, economic, ecologic and cultural capitals. CIM is for the creating and demonstrating 3D city models where various types of data is available including open data, sensors, IoT and even social media [22]. It covers all types of capitals. City Engine is a 3D city modeling software for creating urban environment based on GIS data. As the model is based on the available GIS data it represents spatial, economic, ecologic and cultural capitals. Archicad, Revit and SketchUp are the softwares important for buildings 3D modeling, thus encompassing cultural and spatial capitals. Graphics editors are used for the creating and editing images and represents mainly the spatial capital. There is created traffic flow analysis application for Vilnius city that analyses the intensity of traffic flows and is directly related with ecologic and spatial capital having in mind that human-beings are a part of socio-ecosystem of the city and are responsible for its dynamic equilibrium. The third group of digital tools is a communication platform that is the main instrument for the communication between the planners, decision makers and representatives of the interested parties [19].