090628 URS2009 - Guidelines Urban Structures HCMC...

Developing Guidelines for Energy and Climate Effi i t U b St tEfficient Urban Structures

A new Planning Instrument for AdaptingHo Chi Minh City to the Impacts of Climate ChangeHo Chi Minh City to the Impacts of Climate Change

Ronald Eckert1, Christian Voigt1 & Truong Trung Kien2

Developing Guidelines for Energy and Climate Efficient Urban StructuresA New Planning Instrument for Adapting Ho Chi Minh City to the Impacts of Climate Change

, g g g1Department of Urban Planning and Spatial Design, Brandenburg University of Technology Cottbus/ Germany

2Department of Urban Planning and Architecture, Municipality of Ho Chi Minh City/ Vietnam(VN Express News 2009)

Ho Chi Minh City – An emerging megacityTransition from a centrally planned economy to a free market economy

(DigitalGlobe 2001/ Tran Thi Van/ Ha Duong Xuan Bao 2007)

y

� Main target area of foreign direct investments

� Encouragement of rural-urban migration (up to 200,000 per year)

% fGrowth � Population growth: 60% from 3.9 mill. (1989) to 6.3 mill. (2007) and additional 2 mill.

i t d i t

Growth

non registered migrants� Almost triplication of

settlement area

& Demand

Urban area 1989U b 2006 P l ti th d j ti

(GSO HCMC 2007/ HoREA 2008)


Urban area 2006 Population growth and projection

Climate change risks and vulnerability(Carew-Reid 2008 /SIUP South 2007)

Impacts

& Adaptation

Inundation by 1m SLR

& Adaptation

Inundation by 1m SLRUrban LandIndustrial LandImpacts by seal level rise & tidal flooding, fluvial flooding, urban drainage flooding, heat waves and building subsidence

Need for adaptation

� Spontaneous adaptation measures:


� 43% of HCMC’s administrative and 11% of urban area affected e.g. uplifting ground floor level

Context: Megacity Research Project TP. Ho Chi MinhFunded by the German Federal Ministry of Education and ResearchProgramme “Research for

� Action Field ‘Urban Environment’

Sustainable Development of the Megacities of Tomorrow”

Action Field Urban Environment will evaluate the local impacts of climate change as well as their spatial manifestation within the pregion of HCMC

� Action Field ‘Urban Development’

Impacts

will develop strategies for adap-ting the built environment on all spatial levels of urban develop-

t l i ( i / it /ment planning (region/ city/ neighbourhood/ building/ household and users)Joint consorti m from German& Adaptation � Joint consortium from German research institutions as well as Vietnamese research and admi-nistrative institutions NGOs etc

& Adaptation


nistrative institutions, NGOs etc.

Focus: Mainstreaming of adaptation into the planning system

Research questions

� How to mainstream adaptationHow to mainstream adaptation in a country which focuses on a “growth-first” strategy that prioritizes economic growth and p gprivate capital investment over other concerns?

� How to implement planning guidelines and building codes as adaptation strategies into the Vietnamese planning system which is characterized by a low grade of planning regulations?

� How to manage an effective utilization of planning regula-ti d i th i itions during the permission process for construction and development projects in an overburdened administration?


overburdened administration?

Approach: Guidelines as a new planning instrument

Pioneer HCMC:Development and implemen-tation of design guidelines for

(DPA 2008)

tation of design guidelines for the first time in Vietnam

� Design guidelines refer to a g gprestigious area of four blocks in the inner city of HCMC

� Development criteria derived from current Master Plan is very simple

� Guidelines provide specific criteria, e.g. to limit building coverage, to limit building volumes, specify set-backs of b ildi d tbuildings and to ensure architectural requirements

� Administration is lacking ffi i t it t t d thsufficient capacity to extend the

development and implemen-tation of guidelines and to generalize the guidelines


generalize the guidelines

Green Agenda HCMC: a multi-level strategy for sustainable developmentLevel 1 Guidelines� Will be mainly related to environ-

mental vulnerabilities and gene-

Level 1Regional & City Level

ral urban development concepts on the regional and city level

� Have to correlate with the zoning categories of the Urban Development Plans

Level 2Level 2 GuidelinesNeighbourhood Level Level 2 Guidelines� Will be set-up for smaller areas

and specific development projects� Will focus on urban design

Level 3Building Level Level 3 Guidelines

Will focus on urban design, infrastructure, open spaces etc.

Building Level� Will promote energy efficient and

climate conscious housing typologies

� Will give consideration to as-pects like durability, ventilation and openness, thermal insula-ti d di t ti


tion and disaster prevention

Further researchExemplary development and implementation of Level 2 and 3 guidelines within a specific g parea (High risk and/ or Urbani-zation control area)

Focus on structural adaptation measures and their integration into the planning system

� Extension with measures like community-based adaptation to i t t th ff t d l tiintegrate the affected population and awareness raising concepts


Thank you for your kind attention

www.megacity-hcmc.org


(Volker Martin 2008)

090628 URS2009 - Guidelines Urban Structures HCMC...

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