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TU Berlin

Inhalt des Dokuments

VG 2.0 as nature based solution on the city scale - planning and management



  • Analysis of city structure types and development of adaptable VG implementation strategies,
  • Spatially distributed simulation of VG water demand and water availability (rainwater, grey water) for city districts,
  • Adapted planning and regulatory approaches are developed that enable to make use of full potential of vertical green as a NBS for European municipalities

Examples of the work in the WP:

Using remote sensing methods as well as analysis of inventory, development and zoning plans, typical urban structure types were identified in the cities of Berlin, Vienna and Ljubljana. The results are catalogues of urban structure types that are found the three cities. The catalogue serves as the basis for many further steps in the various work packages, which are based on remote sensing methods such as:

- analysis of city structure typologies and priority zones for VG;

- gathering information about planning approaches, legislation, urban planning methodologies etc.

- development of draft maps for Ljubljana, using Urban Atlas data; comparing the accuracy and availability of the data; combining with open GIS data of the cities

Within the urban structure types those were identified that are suitable for VG. These in turn were overlaid with maps provided by the cities (monument protection, urban heat islands, building density, green spaces and others). As a result, the priority zones for vertical green in the could be identified. Since the same data are not available in all three countries, different maps are used to identify the priority zones in the respective cities.

In addition, a GIS module on water availability and water demand has been developed. Therein, hourly simulated solar radiation is used to calculate the potential evapotranspiration of soil-bound greenery systems which reflects the water demand of the Vertical Greenery System. Therefore, the simplified Penman-Monteith approach is used which is provided by the American Society of Civil Engineers. Additionally, water availability is about to be included with an empirical approach taking into account the building stock, rainfall and soil sealing, resulting in surface runoff. By balancing the available water versus the water demand of Greenery, the Greening potential on a district or city-wide scale is possible. The model is written in the openly available programming language Python which can be coupled with a GIS software.




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