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Berlin Environmental Atlas

04.11 Climate Model Berlin - Planning Advices Urban Climate (Edition 2016)

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Special vulnerabilities based on building/areas uses sensitive to urban climate

Uses of areas/buildings sensitive from the perspective of urban climate are mainly the ones, which are preferably used by the risk groups. For the present analysis, a total of eight different usage types were differentiated: Hospitals, care homes, libraries, child day care centres, schools, after-school care centres, play areas and sports complexes. In the partial areas of the three higher-level space units of PHK 2015, there are currently a total of around 7,300 corresponding individual uses. The main share is constituted by about 64 % of play areas and child day-care centres.

On the whole, at least one climate-sensitive usage type is found in around 25 % of the settlement areas, approx, 12 % of all green and open spaces and 5 % of all partial areas of the space unit public roads, paths and places. In over 90 % of the cases, not more than two different usage types occur simultaneously for each partial area, but in the individual case up to six types occur as cluster.

The spatial distribution of the sensitive area/building uses within Berlin is relatively homogeneous and shows a high correlation with the total population with respect to the districts. The following applies: The more residents a district has, the more climate-sensitive uses also occur. Accordingly, the district of Pankow with almost 700 affected block areas is present at the upper end of the scale, while the district of Spandau is at the lower end with more than 350 block areas with at least one climate-sensitive use. The evaluation shows that there is a relevance for this topic too in all districts of Berlin

To what extent an actual vulnerability of the individual areas results from this spatial distribution, depends essentially on the geographical position in the differentiated stress field. The absolutely viewed largest number of areas with vulnerable uses lies in the district of Pankow, which also shows the highest number of sensitive (also potentially vulnerable) uses of areas/buildings. Apart from this condition, the result does not disclose any relationship between the frequency of occurrence of vulnerable and sensitive uses / the population strength. The reason for this is the spatially divergent percentage share of sensitive uses in a thermally sensitive environment. With respect to complete Berlin, the corresponding value is 33 %. However, within the twelve districts of Berlin, this value fluctuates considerably between approx. 15 % in Steglitz-Zehlendorf and almost 66 % in Marzahn-Hellersdorf (Figure 17).

Figure 17
Fig. 17: Absolute number and relative percentage of aggregated sensitive uses in thermally stressed environment in the 12 districts of Berlin

[Statistical base of the Figure is also available as Excel-File (MS-Excel is required).]

In contrast, the sequence of the absolute number of vulnerable usage types matches exactly that of the ranking for the sensitive types. Play areas and child day care centres also occur here very frequently as the remaining usage types. They clearly make up more than 50 % of the total 2618 partial areas having vulnerable area/building uses. Similar to the district-wise evaluation, there are here also higher differences in the scope, in which the climate-sensitive uses also become actually vulnerable uses. Especially relevant is the high rate in case of care homes and hospitals, which are located in a thermally stressed environment to more than 50 % and for which a highlighted, prioritised need for action can be derived.

Figure 18
Fig. 18: Absolute number and relative percentage of sensitive use types in thermally stressed environment in Berlin

[Statistical base of the Figure is also available as Excel-File (MS-Excel is required).]

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