Published on April 18, 2014
EU BEST PRACTISES SUSTAINABLE URBAN PLANNING NURUL AFINA BT ABD MUTALIB ROSHAFIZAH ROSLAN DERMA NUR ASHIKIN BT NONG RADZIF
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HANNOVER,KRONSBERG,GERMANY HANNOVER: KRONSBERG, A NEW SUSTAINABLE DEVELOPMENT AS PART OF EXPO 2000 OBJECTIVES : IMPROVE ENVIROMENTAL EFFICIENCY INCREASE PUBLIC AWARENESS INCREASE USE OF CLEAN TECHNOLOGY
HANNOVER,KRONSBERG,GERMANY The Kronsberg district (Hannover, Germany) presents a comprehensive example of visionary urban planning and construction Kronsberg is a settlement with exceptionally high ecological standards, buildings offering above-average quality of accommodation and semi-natural open space design The district represents one of the largest and most advanced settlement programmes of its kind in Europe.
COMPACT STRUCTURES Decreasing density and building height as one approaches the countryside The appearance of the district is shaped by its wide- meshed rectangular grid layout, which creates frames for very varied block structures. The built-up, urban quality of the townscape is the result of design parameters that set the number of storeys, building heights and building lines along the streets Along with the demand for compact structures, an important condition was that all corner plots should be built on.
COMPACT STRUCTURES At the centre of the district, right next to Kronsberg tram stop, it is the district square, on which are grouped: Krokus arts and community centre Protestant church centre A health centre A shopping centre Other shops, café and restaurants
TRANSPORT A new direct light rail transit service (Stadtbahn) links the settlement with the city centre Three light rail stops are so located that nobody has to walk more than 600 metres to catch a tram The main motorised traffic flow is channelled along the edge of the development beside the light rail line to minimise nuisance to residents Planning of the residential street layout permits no through traffic Narrow sections on the roads, 30 kph zones, and priority to the right at junctions, are effective traffic calming measures Car parking spaces are mainly arranged in small areas, either set into the hillside or at ground leveL To reduce the parking space needs in the inner courts, a parking space ratio of 0.8 per apartment was set at Kronsberg A cycle-friendly street layout with a designated cycle street running the length of the district offers, together with a dense network of rural and urban footpaths, an attractive alternative to private motorised transport.
ENERGY A ‘Low Energy House’ standard was set for the entire Kronsberg development, meaning that the residential area has successfully managed to reduce carbon dioxide emissions by 60% compared to conventional new construction in Germany. (The theoretical heating demand of homes on Kronsberg is a maximum 45- 55kWh/m2 per year, the German average is 200kWh/m2 per year.) The site features a ‘Passive House’ development of 32 terraced houses requiring almost 90% less heating energy than conventional terraces (15kWh/m2per year), due to 400mm insulation, extremely airtight structures, air extraction plants with heat recovery, triple glazing and solar thermal collectors.
The district is served by two decentralised natural gas CHP (combined heat and power) plants, enabling further carbon reductions. Two large new wind turbines at Kronsberg (1.5MW and 1.8MW), together with an existing 300kW roughly meet the electricity needs of residents across the district. 104 social housing apartments are heated from around 1350m2 of solar collectors, that also feed into a sunken thermal storage tank, meaning that solar energy can be used from spring through to December, covering around 40% of the total heating needs of the homes.
Building integrated solar thermal system
WASTE Recycling stations for pre-separated waste such as paper, packaging and organics, are situated through the neighbourhood and underground glass recycling bins help minimise the visual impact of such facilities. Consideration was given to waste minimisation during the construction of Kronsberg and excavated soil was re-used in local landscape features to avoid it’s transportation to land-fill sites - in raising the noise buffer embankment along the nearby motorway.
Glass RECYCLING BINS
Method of rainwater management used to maintain the natural water resources of the district. Rainwater is collected from the entire Kronsberg site and carefully sent above-ground through various systems designed to retain the water and allow it to drain into the ground. Kronsberg ponds, basins, ditches and channels are at times designed, sculptural elements and at other more natural and organic in form.
The sloping street Weinkampswende Gulleys at Ellernbuschfeld Retention areas at the foot of the slope
All apartments are equipped with water-saving taps. Economy aerator. These reduce water- consumption greatly, although it is barely perceptible. The resident are encouraged to economies on drinking water
Water usage in German households in litres per person per day Water Concept Kronsberg Part of the EXPO project
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