Resilient Urban Edges: Adaptive and Mitigative Design in Chennai

Enos, V. and Schiano-Phan, R. 2017. Resilient Urban Edges: Adaptive and Mitigative Design in Chennai. Brotas, L. and Nicol, F. (ed.) Passive Low Energy Architecture Conference 2017, Design to Thrive. Edinburgh 02 - 05 Jul 2017 NCEUB 2017.

TitleResilient Urban Edges: Adaptive and Mitigative Design in Chennai
AuthorsEnos, V. and Schiano-Phan, R.
EditorsBrotas, L. and Nicol, F.
TypeConference paper
Abstract

This paper investigates design responses to El Nino-mediated climatic disturbances, using the December 2015 Chennai floods as a test case. The effects of such disturbances are exacerbated by human intervention: urbanisation-led impermeabilisation of soil accentuates the urban heat island, makes water percolation difficult, increasing surface run-off. Using literature, precedents and on-site interviews with residents of a tenement block in severely-flooded Chennai, downstream of the River Adyar, key issues were identified. Additionally, impact of existing morphology on comfort conditions were derived using analytical tools of Envimet, Ladybug and CFD (outdoor) and TAS (indoor). The conclusions informed testing of hypotheses which merged with informal recycling practices of the residents. The paper discusses strategies employing recycled and local materials to build permeable surfaces (water-air-ground interfaces) to be embedded into existing architectural objects (by retrofitting), or utilised to build new experimental floating structures complementing the existing. The design studies show how strategies bring extreme temperatures of 42°C within a comfortable range in indoor and outdoor spaces; whilst contributing to flood mitigation. The paper speculates upon a resilient live-work environment for 2050 employing productive self-build networks to alleviate socio-economic polarisation characterising riverfronts, contributing to urban permeability and responding adaptively to daily, seasonal and extreme events

KeywordsChennai, El Nino, adaptive, mitigative, permeable
Year2017
ConferencePassive Low Energy Architecture Conference 2017, Design to Thrive
PublisherNCEUB 2017
Accepted author manuscript0249_v2.pdf
Publication dates
Completed05 Jul 2017
ISBN9780992895754
Web address (URL) of conference proceedingshttps://plea2017.net/#programmes-container

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