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Bioclimatic landscape design: improving outdoor comfort in Christchurch towards a more liveable city

Research Archive

Bioclimatic landscape design: improving outdoor comfort in Christchurch towards a more liveable city

Tavares, Silvia
Type: Conference Contribution - Unpublished (Conference Oral Presentation)
Permalink: https://hdl.handle.net/10182/4779
Originally published: 2011-09 by Lincoln University. Faculty of Environment, Society and Design. School of Landscape Architecture
Rights: Copyright © The Author.
Keywords: rebuild; liveability; urban design; landscape design; bioclimate; Christchurch; outdoor living

Abstract:

The aftermath of three earthquakes has forced Christchurch to re-plan and rebuild. New perspectives of a sustainable city have arisen granting Christchurch the chance of becoming an example to the world. This work is centred on bioclimatic landscape design as a base for greening strategies. It deals with strategic landscape design adapted to a specific climate, from a user’s perspective. The investigation will be applied to Christchurch’s urban centres, assessing cultural adaptability to the local climate and implications for landscape design. Climatic data shows that humidity is not a local problem. However, the wind is the determinant. In Christchurch the solar radiation and the prevailing winds are the most important microclimatic variables, the latter intensifying the loss of surface heat, decreasing the radiant temperature and affecting thermal sensation. The research objective is to explore design parameters at the street-scale and identify ways to maximise thermal comfort in outdoor spaces through design-based strategies. The investigation will apply methods of participant observation, depth interviews, climatic data collection and design experimentation based on thermal comfort models and computer simulation tools. Case study sites chosen for investigation are places with current levels of activity that may be anticipated in the rebuild of the central city. The research will have two main outcomes: improved understanding of local urban culture adaptation to microclimate, and a demonstration of how design can enhance adaption. These outcomes will inform designers and city managers about good design practices and strategies that can be used to ensure a long term liveable city.

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