Saarbrücken – Open space planning as a field of action for adaptation measures
Hintergrund und Ziele
Saarbrücken has around 180,000 inhabitants and is located in the valley floodplain of the River Saar. The state capital can look back on a mining and industrial past, whose legacy provides great potential for open space development.
Saarbrücken's susceptibility to climate change is determined by the increased occurrence of extreme heat events that cause a reduction in thermal comfort and stress for residents, and by the increase in flooding and inundation events.
Objectives:
The expansion of Saarbrücken's open space development program with measures for adaptation to the effects of climate change pursued three central project objectives:
- Example identification of potential adaptations transferable to other local authorities as part of sustainable urban open space planning and implementation of specific strategies and programmes of measures at district level,
- Initiation of a process in civil society to address the issue of climate change (climate change governance) to highlight interfaces with key urban fields of action and with higher level planning levels, and
- Participation and involvement of the population at district level into the formulation of adaptation strategies and measures.
Laufzeit
bisUntersuchungsregion/-raum
Land
- Deutschland
Bundesland
- Saarland
Räumliche Auflösung / Zusatzinformationen
Saarbrücken
Schritte im Prozess zur Anpassung an den Klimawandel
Schritt 1: Klimawandel verstehen und beschreiben
Ansatz und Ergebnisse
The German Meteorological Office (DWD, Senior federal authority in the BMVBS) is providing the required climate data for all Urban Climate projects as a basis for climate effect estimates. Further information and results of regional climate model analyses were based on cooperation between the state capital and the transnational inter-regional project "C-Change - Changing Climate, Changing Lives".
Parameter (Klimasignale)
- Flusshochwasser
- Hitzewellen
- Veränderte Niederschlagsmuster
- Höhere mittlere Temperaturen
- Starkniederschlag (inkl. Hagel, Schnee)
Weitere Parameter
threshold days for temperature and precipitation
Schritt 2a: Risiken erkennen und bewerten (Klimafolgen/-wirkungen)
Analyseansatz
Extreme heat events and increase in flooding and inundation events
Describe here, which approach for the vulnerability analysis, risks and/or chances is/was used within your project and which results emerged from it or are expected
Ansatz und Risiken / Chancen
Heat stress vulnerability check: The increase in summer heat stress will mainly have a negative impact in residential areas that already demonstrate increased thermal stress. Within these stress zones, sensitive residential areas are differentiated by the parameters of construction and population density; in addition the parameters of traffic volume, air pollution, age structure, sensitive uses and social structure were used in the detailed analysis at district level. The natural adaptability of sensitive residential areas is significantly influenced by their greening - for example the size and features of open spaces around buildings and the green coverage of roads - but also by the existing public green and open spaces and by climatic factors from open land (ventilation routes, cold air formation zones). The overall vulnerability is derived from the combined analysis of the thermal stress, the sensitivity of a district and its natural adaptability.
Extreme precipitation events were also studied as a further consequence of climate change. In this case, the sensitivity is determined by the risks to residential areas (inundation, flooding or slope runoff) and the presence of critical infrastructure or facilities (e.g. processing of water polluting substances). In conjunction with the central waste disposal authority (ZKE) an initial approach has been developed to limit vulnerability to extreme precipitation, which includes identification of road sections at risk of inundation
Schritt 3: Maßnahmen entwickeln und vergleichen
Maßnahmen und/oder Strategien
Development of open spaces and green spaces as cold air formation zones, recreation areas and retention areas.
Zeithorizont
- 2071–2100 (ferne Zukunft)
Wer war oder ist beteiligt?
Förderung / Finanzierung
Ministry of Transport, Construction and Urban Development (BMVBS) and Federal Institute of Construction, Urban and Spatial Research (BBSR): KlimaExWoSt: StadtKlima
Projektleitung
research assistance: agl - Applied geography, landscape, urban and regional planning
Beteiligte/Partner
Regional Planning in the Ministry of Environment, Energy and Transport of the Saarland, Saarbrücken Regional, RAG Montan Immobilien GmbH, GMS building management operation Saarbrücken, CCU Central Municipal waste disposal firm Saarbrücken, Real estate group Saarbrücken, Stadtplanungsamt Saarbrücken, Office of Air and Environmental Protection in Saarbrücken, Project Group "city center on the river".
With the Interreg IVB project "C-Change. Changing Climate, Changing Lives", working in the framework of the national capital and the Ministry of Environment, Energy and Transport of the Saarland (MUEV) already, these activities will also be embedded in a transnational partnership.
Ansprechpartner
Landeshauptstadt Saarbrücken
Nassauer Straße 4
D-66111 Saarbrücken
