BAHAN KAJIANMK. Kajian Lingkungan dan Pembangunan

SUSTAINABLE CITY

Diabstraksikan / disajikan oleh:Prof Dr Ir Soemarno MSPPSUB Agustus 2011

KOTA RAMAH LINGKUNGANA sustainable city, or eco-city

is a city designed with consideration of environmental impact, inhabited by people dedicated to minimization

of required inputs of energy, water and food, and waste output of heat, air pollution - CO2, methane, and

water pollution.

Richard Register first coined the term "ecocity" in his 1987 book, Ecocity Berkeley: building cities for a healthy future.

Emisi kendaraan bermotor di jalan-jalan perkotaan

menjadi salah satu sumber

emisi yang dapat mencemari udara kota

Malang menuju Kota Ramah Lingkungan

Foto smno 2011

Malang menuju Kota Ramah Lingkungan

Jalur hijau di sepanjang jalan-jalan di kota

Malang mempunyai andil sangat besar dalam menentukan indeks kenyamanan

lingkungan kota.

Penataan lebih lanjut dapat diarahkan pada perawatan tajuk pohon dan penanaman jenis-jenis yang lebih ramah

lingkunganFoto smno 2011

KOTA RAMAH LINGKUNGAN

A sustainable city can feed itself with minimal reliance on the surrounding countryside, and power itself with

renewable sources of energy.

The crux of this is to create the smallest possible ecological footprint, and to produce the lowest

quantity of pollution possible, to efficiently use land; compost used materials, recycle it or convert waste-to-

energy, and thus the city's overall contribution to climate change will be minimal, if such practices are

adhered to.

Occupation level coefficient

Concept of occupation level coefficient is ratio of authorized area for construction with respect to total denotative parts area. On this basis, above

index achieves by dividing authorized occupation area to total denotative parts area and expresses as a percentage.

For example, when the index level of occupation coefficient for a 400 m2 piece of land is 60%, it means that 60% of this land can be constructed. Occupation level coefficient has direct effect on construction pattern of infrastructure of

cities. Effects of occupation level coefficient on given infrastructure decrease

severely when construction of more than one floor buildings spreads. Today the most common occupation level coefficient in urban designs is 60%;

however this coefficient can be decreases to 50% or 40% in some urban areas.

It should be noted that occupation level coefficient is one of most ineffective indexes for population density control and only can effects the control of

population density when combine with other indicators such as number of building’s floors. This indicator has particular importance in urban design.

KOTA RAMAH LINGKUNGAN

The ecological cities are achieved through various means, such as:

Different agricultural systems such as agricultural plots within the city (suburbs or centre). This reduces the distance food has to

travel from field to fork. Practical work out of this may be done by either small scale/private farming plots or through larger scale

agriculture (e.g. farmscrapers).

Renewable energy sources, such as wind turbines, solar panels, or bio-gas created from sewage. Cities provide economies of scale

that make such energy sources viable.

KOTA RAMAH LINGKUNG

The ecological cities are achieved through various means, such as:

Various methods to reduce the need for air conditioning (a massive energy demand), such as planting trees and

lightening surface colors, natural ventilation systems, an increase in water features, and green spaces equaling at least

20% of the city's surface. These measures counter the "heat island effect" caused by an

abundance of tarmac and asphalt, which can make urban areas several degrees warmer than surrounding rural areas—as

much as six degrees Celsius during the evening.

Lahan sawah di sekitar Kota Malang

Ruang terbuka hijau berupa lahan sawah

dengan pepohonan di sekitarnya dapat menyumbangkan

kenyamanan lingkungan bagi atmosfir Kota

Malang.

Lahan-lahan seperti ini terancam oleh pertumbuhan kota

yang tidak terkendaliFoto smno 2011

KONVERSI SAWAH MENJADI PUSAT BISNIS

Lahan sawah di pinggiran Kota

Malang dikonversi menjadi Pusat Pasar

dengan fasilitas pendukungnya.

ADA jasa-jasa lingkungan yang

hilang akibat konversi lahan seperti ini

Foto smno 2011

KOTA RAMAH LINGKUNG

The ecological cities are achieved through various means, such as:

Improved public transport and an increase in pedestrianization to reduce car emissions.

This requires a radically different approach to city planning, with integrated business, industrial, and

residential zones. Roads may be designed to make driving difficult. Optimal building density to make public transport viable but avoid the creation of urban heat islands.

Ramainya alon-alon Kota Malang

Rimbunnya pepohonan di alon-alon Kota

Malang apa mampu menyerap emisi kendaraan bermotor yang

semakin “crowded”

Foto smno 2011

BUILDING DENSITY = Surface of infrastructure coefficient

Sumber: http://region6.tehran.ir/Default.aspx?tabid=101&language=en-US

Surface of infrastructure coefficient or building density is

one of most common methods of population density control in the world and especially on cities.

This index is achieved by dividing surface of constructed building’s infrastructure to total

denotative land surface. Building density is usually without unit

and represents as a percentage. In fact, this index indicates authorized percentage of

construction of infrastructure toward total denotative land

area.

KOTA RAMAH LINGKUNGThe ecological cities are achieved through various

means, such as:

Solutions to decrease urban sprawl, by seeking new ways of allowing people to live closer to the workspace

Since the workplace tends to be in the city, downtown, or urban center, they are seeking a way to increase density by changing the antiquated attitudes many suburbanites

have towards inner-city areas.

One of the new ways to achieve this is by solutions worked out by the Smart Growth Movement.

KOTA RAMAH LINGKUNG

The ecological cities are achieved through various means, such as:

Green roofs Zero-emission transport

Zero-energy building

Sustainable urban drainage systems or SUDS Energy conservation systems/devices

Xeriscaping - garden and landscape design for water conservation

Taman halaman gedung dengan sistem multistrata

Taman multistrata ternyata mempunyai kemampuan indeks

kenyamanan lingkungan yang lebih

baik dibandingkan dengan monostrata

Nilai amenitas dari biodiversitas tanaman

pertamanan

Foto smno 2008

Delman: Zero emission transport

Sumber: http://ndobos.blogdrive.com/comments?id=252

Sustainable City AwardThis award

focuses on a holistic approach on Sustainability

in cities and integrates

different types of resources or capital's for a

better future in cities around the

world.

Viikki EcoCity, GermanyExperimental ecological building

Two separate competitions were arranged to find new, more ecological housing solutions for the southern part of Latokartano.

A set of specific ecological criteria was created to encourage sustainable development in the building process, and make it possible

to measure the level of respect for the ecosystem evinced by the various building projects.

The projects were judged with regard to pollution, use of natural resources, how healthy the houses were to live in, diversity of nature

and food production.

Passive and active use of solar energy has been most important among the experimental building themes employed in Viikki.

Viikki EcoCity

The first of the new inhabitants of Latokartano moved there in 1998

The building programme for the area is varied. People living in the high-rise buildings, smaller buildings with

more than one storey, terrace houses and semi-detached houses in Latokartano will be able to choose between

owning their home outright, tenant ownership rights, or renting their home.

Building’s floorsAnother indicator that used for population density control is

authorized building’s floors. Use of height scoping is common for applying control indicator of

building’s floors number for different urban areas. Index of number of

building’s floors has direct effect on sky line and urban visage and

therefore is an important indicator for urban designers. Briefly,

authorized building’s floors method is used beside authorized

occupation level for freeing the lands. Construction of high

buildings in Iran has been formed based on this logic.

http://region6.tehran.ir/Default.aspx?tabid=101&language=en-US

Intensity of land usage

Intensity of land usage is used for construction and population density as a more complete index. This index controls development and construction in the land

simultaneously with residential population numbers. In the other words, intensity of land usage controls infrastructure of land and residential units’ numbers

simultaneously. In addition, it determines minimum parking, open and residential needed spaces.

Base of intensity of land usage index is ratio of infrastructure of building to land area. Numerical scale of measuring the intensity of land usage is in exponential form. If the intensity of land usage be 2.5 % and reaches to 2%, then equivalent

building density will be 5%; and if intensity of land usage reaches to 3% then building density will be doubled and reach to 10%. This difference increases at

higher intensities of land usage and can be seen more clearly, so that when intensity of land usage increases from 6% to 7%, then building density will be

increase from 80% to 160% and if intensity of land usage increases from 7% to 8% then building density will be increase from 160% to 320%.

http://region6.tehran.ir/Default.aspx?tabid=101&language=en-US

Viikki EcoCity as science district

Viikki has become a green university campus district. The Viikki Science Park is at the heart of the new town

district.The Science Park is a centre for research, study and

entrepreneurship focused on biology and biotechnology that has grown up around Helsinki

University institutions.The University’s faculties of agriculture and forestry, biosciences and pharmacy, and veterinary medicine

are all now located at Viikki.To aid start-up companies two company incubator

units have been included in the Science Park.

KOTA RAMAH LINGKUNGAN

What has been done?Cooperation and coordination in Regional level:•Greater Helsinki Vision Competition•Climate Strategy for the Helsinki Metropolitan Area 2030•Helsinki Regional Area Transport System Plan (HLJ 2011)•Waste Act on behalf of the YTV member municipalities (4)•Active interaction in governance level

Problems:•Dispersion of regional structure, scattered development•Division in municipal structure (strong autonomy)•Lack of strong and comprehensive regional policy on developing means and paths

SMART GREEN CITY PLANNING UNTUK MASA DEPAN

Perkembangan kawasan kota yang semakin pesat menyebabkan tingginya

desakan terhadap pemenuhan kebutuhan

ruang hunian dan aktivitas ekonomi. Hal

tersebut berpotensi menimbulkan berbagai

masalah yang bisa menciptakan urban

paradox, di mana kota yang diharapkan

menciptakan kesejahteraan justru melahirkan kantong-

kantong kemiskinan baru.

http://green-city-015.blogspot.com/

GREEN CITY IN THE WORLD = Victoria, British Columbia

http://ecopreservationsociety.org/site/index.php/the-news/sustainability/356-5-green-cities-of-the-future

Victoria, British Columbia, plans to be carbon-neutral by 2012. Its Dockside Green pro ject brings that goal closer to

realization. The environmentally sustainable plans for Dockside Green

combine residential, commercial, light industrial

and green space on 15 acres (roughly 0.06 square

kilometers) of harbor-front land.

Sweden

Gothenburg, and especially Älvstaden (central city by the river Göta Älv) are good examples of sustainable city in

Sweden.

They have low environmental impact, contain passive houses, good recycling

system for waste, etc.

Korea

Songdo IBD is a planned city in Korea which has incorporated a number of eco-friendly

features. These include a central park, irrigated with

seawater, a subway line, bicycle lanes, rainwater catchment systems, pneumatic waste

collection system, ...

Finally, 75% of the waste generated by the construction of the city will be recycled.

CanadaIn 2010, Calgary ranked as the top eco-city

in the planet for its, "excellent level of service on waste removal, sewage

systems, and water drinkability and availability, coupled with relatively low air

pollution.” Ottawa ranked in third place.

The survey was performed in conjunction with the reputable Mercer Quality of Living

Survey

Australia

The City of Moreland in Melbourne's north, has programs for becoming carbon neutral, one of which

is 'Zero Carbon Moreland', amongst other existing sustainable implementations and proposals.

City of Melbourne. Over the past 10 years, various methods of improving public transport have been

implemented, car free zones and entire streets have also been implemented.

The Sustainable city of Barcelona

Working through the 5-year Sustainability Plan for the City of San Francisco:

1.Air Quality2.Biodiversity3.Energy, Climate Change and Ozone Depletion4.Food and Agriculture5.Hazardous Materials6.Economy and Economic Development7.Environmental Justice 8.Human Health9.Parks, Open Spaces and Streetscapes10.Solid Waste11.Transportation12.Water and Wastewater13.Municipal Expenditures14.Public Information and Education 15.Risk Management (Activities of High Environmental Risk)

URBAN AIR QUALITY

Airborne pollutants can be classified broadly into two categories: primary and secondary.

Primary pollutants are those that are emitted into the atmosphere by sources such as fossil fuel combustion from power plants, vehicle engines and industrial production, by

combustion of biomass for agricultural or land-clearing purposes, and by natural processes such as windblown dust,

volcanic activity and biologic respiration.

Secondary pollutants are formed within the atmosphere when primary pollutants react with sunlight, oxygen, water and other

chemicals present in the air.

http://www.worstpolluted.org/projects_reports/display/64

KUALITAS UDARA KOTA

Outdoor air pollution in the context of public health is characterized by several major airborne pollutants.

Particulate Matter (PM), Tropospheric Ozone (O3), Nitrogen Dioxide (NO2), and Sulfur Dioxide (SO2) are some of the most commonly

monitored pollutants.

Particulate matter in the atmosphere is mainly attributed to the combustion of fossil fuels, especially coal and diesel fuel, and is

composed of tiny particles of solids and liquids including ash, carbon soot, mineral salts and oxides, heavy metals such as lead,

and other organic compounds.

SUMBER: http://www.worstpolluted.org/projects_reports/display/64

Kepadatan lalulintas di jalanan Kota Malang

Emisi kendaraan bermotor menjadi

faktor utama penentu kualitas

udara kota

Foto smno 2011