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By Andrea Giberna

The open city

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Page 1: The open city

By Andrea Giberna

Page 2: The open city

‘’The city everyone wants to live in should be clean and safe, posses efficient public service, be supported by a dynamic

economy, provide cultural stimulation, and also do its best to heal society’s division of race, class, and ethnicity.’’ R. Sennett

I strongly believe the city of the future will follow some of the cardinal principles of the “open city”, which are mainly

sustained by J. Jacobs ( American-Canadian journalist and urbanist) and R. Sennett ( English sociologist).

Page 3: The open city

CLOSED OPEN

PRESENT FUTURE

=

VS

VS

Page 4: The open city

What is the closed city?

• Cities built in present time

• Main features

1. Over-determination:

a) Proliferations of rules and regulations disable local innovation and growth and froze cities in time

b) As uses change, buildings have to be replaced→ fixed form-function relations make them so difficult to adapt

2. Society as a closed system: zoning isolation→ people live and work in unawareness conditions and there is no information exchange among different zones

Page 5: The open city

What is the open city? (1)

• The city of the future

• It is based on the principle of the open system: a process that exchanges material, energy, people, capital, and information with its environment

• It allows jerry-built adaptations or additions to existing buildings

• It encourages uses of public spaces which do not fit neatly together

Page 6: The open city

What is the open city? (2)

3 main features

1. Creating ambiguous edges between parts of the city

2. Contriving incomplete forms in buildings

3. Planning for unsolved path of development

Page 7: The open city

AMBIGUOUS EDGES

BOUNDARY VS BORDER

• Edges where things end

• Edges where different groups interact

Boundaries change into borders because community resources are located at the edge between communities. This action allows borders to become porous, so the exchange between different racial, ethnic, or class communities increase.

What happens?

Page 8: The open city

INFORMATION EXCHANGE THROUGH POROUS BORDER

MIDDLE CLASS COMMUNITY

COMMUNITY RESOURCE

POROUS BORDER

LOWER CLASS COMMUNITY

POROUS BORDER

INFO

FLOW

FLOW

INFO

Page 9: The open city

INCOMPLETE FORM

• Using the so called light architecture→ an architecture planned so that it can be added to, or more importantly, revised internally in the course of time as the needs of habitation change

• Challenge → using new technologies to convert modern tall buildings, which have complex infrastructure and are hard to adapt to new purpose.

• Benefits →

1. A more efficient conversion of current buildings allows us to save resources(capital and materials)

2. Cities expand just for increasing population reasons, and not for structural needs, such as: needing of new hospitals, schools, or new residential/shopping areas

Page 10: The open city

UNSOLVED PATH

• Planning in the open city is like using open system in mathematics and the natural world, it embraces non-linear forms of sequence

• The planner looks at conflicts and possibilities which each stage of the city developing process should open-up

• The city has no more any pre-fixed order, it develops in an irregular way, which makes each zone of it full of many different resources, exploitable from people who differ in social class and/or ethnic group

• This kind of evolution stimulate people’s interest. Running always into something unexpected, they become more aware of their environments

Page 11: The open city

SOLVED VS UNSOLVED

STAGE 1

STAGE 3

STAGE2

STAGE 4

STAGE 5 STAGE 5STAGE 3

STAGE 2

STAGE 5

STAGE 4

STAGE 4

STAGE 3

STAGE 2

STAGE 1

POSSIBILITY / CONFLICT

URBAN PLAN

Page 12: The open city

To sum up…

1. The city of the future will be multi-ethnical and with a less strict class structure

2. Buildings will have incomplete forms in order to be converted more easily

3. The development of the city will not be fixed. It will depend on the conflicts and possibilities that planners meet at each stage