The Environmental Brief: Pathways For Green Design

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Much later, in , Reyner Banham pioneered the idea that technology, human needs and environmental concerns should be considered an integral part of architecture.

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Some of the most promising technologies are in building-integrated PV, urban wind turbines, micro CHP and solar cooling. Purchases Buying the cheapest lamps, chillers, freezers, ovens, and pumps on offer does not necessarily constitute the most sustainable approach to purchasing. Related news. Richard Hyde. Wheeler, S. All material flows need to be examined and fully understood, and special attention needs to be given to industrial waste and e-waste treatment. This is a transparent way to show your providers the requirements and processes for their next orders.

Probably no historian before him had so systematically explored the impact of environmental engineering and services on the design of buildings Howard, ; Banham, These principles for achieving green urbanism have to be clearly defined and adjusted to an era of rapid urbanization, especially in the Asia-Pacific Region. In the 21st century we are working in an entirely new context, for which we need new types of cities.

Today, we know that uncontrolled development is a damaging exercise, and that urban growth should occur in existing city areas rather than on greenfield sites. However, as several recent studies of inner-city lifestyles reveal, an increase in consumption can be part of the inner-city renaissance, which often enlarges the ecological footprint of the urban dweller e.

They are new types of mega-cities, which express an impossibility of orderly planning and strategic regulation. We find emerging Green Urbanism theory for the 21st century, which aims to transform existing cities from fragmentation to compaction. Eco-city theory focuses on adjusting the relationship between city and nature. Leading sociologists and urban theorists, including Ulrich Beck, Saskia Sassen, Richard Sennett, Jan Gehl, Manuel Castells, Anthony Giddens, Herbert Girardet, Thomas Sieverts, to name just a few, are exploring wider areas such as globalization, urban sustainability, ecology, network systems, information and communication technologies, and other related fields.

More recently, excellent compilations of research on sustainable cities have been published by Satterthwaite, Wheeler and Beatley. Today, we can probably recognize two major breaks in the continuous development of cities.

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The second, the full awareness of problems posed by climate change and consumption of fossil fuel, is of equal importance and just as far-reaching, raising the possibility of entirely new city models and typologies that are likely to emerge: Green Urbanism. Lehmann, Figure 1. Above: The three pillars of Green Urbanism, and the interaction between these pillars.

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Below: The holistic concept of Eco-City has again a balanced relationship between the urban area city and the rural area countryside. These principles are partly universal, but there is no one single formula that will always work.

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To achieve more sustainable cities, urban designers must understand and apply the core principles of Green Urbanism in a systematic and adapted way. The following Principles of Green Urbanism were developed to further flesh-out these ideas. It must be noted, though, that in order to enable sustainable urban development and to ensure that eco-districts are successful on many levels, all urban design components need to work interactively and cannot be looked at separately.

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The principles are based on the triple-zero framework triple-bottom line of:. Understandably, it requires a holistic approach to put the principles in action and to guide the available know-how to the advantage of the city. The principles describe the strategies necessary for eco-districts, although they need to be adapted to the location, context and scale of the urban development. It may be difficult at first to achieve some of the principles, but all are important; they can potentially save money, reach early payback, improve livability and increase opportunities for social interaction of residents.

Green Building Standards and Certification Systems

The principles offer practical steps on the path to sustainable cities, harmonizing growth and usage of resources. What are the unique site constraints, climatic conditions and opportunities? Maintaining complexity in the system is always desirable be it biodiversity, eco-system or neighbourhood layout , and a high degree of complexity is always beneficial for society. Enhancing the opportunities offered by topography and natural setting leads to a city well adapted to the local climate and its eco-system. Due to the different characteristics of every location, each city district has to come up with its own methods and tailored strategies to reach sustainability and to capture the spirit of the place.

As an aim, all urban development must be in harmony with the specific characteristics, various site factors and advantages of each location and be appropriate to its societal setting and contexts cultural, historical, social, geographical, economical, environmental and political. In future, all buildings will have climate-adapted envelope technologies, with facades that are fully climate-responsive.

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How can energy be generated and supplied emission-free and in the most effective way? The supply of oil will last shorter than the life-expectancy of most buildings. The local availability of a renewable source of energy is the first selection criteria for deciding on energy generation. In general, a well-balanced combination of energy sources can sensibly secure future supply. A necessary aim is also to have a distributed energy supply through a decentralized system, utilizing local renewable energy sources. This will transform city districts into local power stations of renewable energy sources, which will include solar PV, solar thermal, wind on- and off-shore , biomass, geothermal power, mini-hydro energy and other new technologies.

Some of the most promising technologies are in building-integrated PV, urban wind turbines, micro CHP and solar cooling.

That is to say, there should be on-site electrical generation and energy storage in combination with a smart grid, which integrates local solar and wind generation, utilizing energy-efficiency in all its forms. Solar hot water systems would be compulsory. Co-generation technology utilizes waste heat through CHP combined-heat-and-power plants. Energy-efficiency programs are not enough. Too often we find that savings from energy-efficiency programs are absorbed by a rise in energy use. Genuine action on climate change means that coal-fired power stations cease to operate and are replaced by renewable energy sources.

Eco-districts will need to operate on renewable energy sources as close to per cent as possible. As a minimum, at least 50 per cent of on-site renewable energy generation should be the aim of all urban planning, where the energy mix comes from decentralized energy generation and takes into account the resources that are locally available, as well as the cost and the availability of the technology. Optimizing the energy balance can be achieved by using exchange, storage and cascading exergy principles. It is, therefore, essential that the fossil-fuel powered energy and transportation systems currently supporting our cities are rapidly turned into systems that are supplied by renewable energy sources.

High building insulation, high energy-efficiency standards and the use of smart metering technology is essential, so that if a part of an office building is not in use, the intelligent building management system will shut down lights and ventilation.

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The Environmental Brief: Pathways for Green Design [Richard Hyde, Steve Watson, Wendy Cheshire, Mark Thomson] on *FREE* shipping on . PDF | On Jan 1, , R. A. Hyde and others published The environmental brief: Pathways for advancing green design.

How to avoid the creation of waste in the first place — changing behaviour of consumption? Zero-waste urban planning includes reducing, recycling, reusing and composting waste to produce energy. All material flows need to be examined and fully understood, and special attention needs to be given to industrial waste and e-waste treatment. Eco-districts are neighbourhoods where we reuse and recycle materials and significantly reduce the volume of solid waste and toxic chemical releases.

All construction materials as well as the production of goods and building components need to be healthy and fully-recyclable. Waste prevention is always better than the treatment or cleaning-up after waste is formed. In this context of waste, better management of the nitrogen cycle has emerged as an important topic: to restore the balance to the nitrogen cycle by developing improved fertilization technologies, and technologies in capturing and recycling waste.

Controlling the impact of agriculture on the global cycle of nitrogen is a growing challenge for sustainable development. What is the situation in regard to the sustainable supply of potable drinking water? The city can be used as a water catchment area by educating the population in water efficiency, promoting rainwater collection and using wastewater recycling and storm water harvesting techniques e. Storm water and flood management concepts need to be adopted as part of the urban design, and this includes storm water run-offs and improved drainage systems and the treatment of wastewater.

This includes such things as algae and bio-filtration systems for grey water and improving the quality of our rivers and lakes so that they are fishable and swimmable again. An integrated urban water cycle planning and management system that includes a high-performance infrastructure for sewage recycling grey and black water recycling , storm water retention and harvesting the substantial run-off through storage, must be a routine in all design projects.

On a household level we need to collect rain water and use it sparingly for washing and install dual-water systems and low-flush toilets. On a food production level we need to investigate the development of crops that need less water and are more drought resistant. Which strategies can be applied to protect and maximize biodiversity and to re-introduce landscape and garden ideas back in the city, to ensure urban cooling?

This pride is best formed through a strong focus on local biodiversity, habitat and ecology, wildlife rehabilitation, forest conservation and the protecting of regional characteristics. Ready access to these public parks, gardens and public spaces, with opportunities for leisure and recreation, are essential components of a healthy city. As is arresting the loss of biodiversity by enhancing the natural environment and landscape, and planning the city using ecological principles based on natural cycles not on energy-intensive technology as a guide, and increasing urban vegetation.

A city that preserves and maximizes its open spaces, natural landscapes and recreational opportunities is a more healthy and resilient city.


Further, the narrowing of roads, which calms traffic and lowers the UHI effect, allows for more all-important tree planting. Preserving green space, gardens and farmland, maintaining a green belt around the city, and planting trees everywhere including golf courses , as trees absorb CO 2 , is an important mission. As is conserving natural resources, respecting natural energy streams and restoring stream and river banks, maximizing species diversity.

At home, we need to de-pave the driveway or tear up parking lots.