Sustainable urban development

Cards (34)

  • What is sustainable urban development?
    • Meeting the needs of the present without compromising the ability of future generations to meet their own needs
  • EXAMPLE: Sustainable development in Kendal:

    • Beezon fields > increase habitat and wildlife
    • Solar panels on schools
    • Increased recycling and insulated windows in schools
    • Auction Mart > affordable homes
    • Flood site defenses > sustainable aims
    • New homes insulated e.g. Strawberry Fields
    • Increase cycle lanes and pedestrianised areas
    • Cap bus fares > more public transport use > low emission busses
  • Cities today vs how they should be:
    Today:
    • Sprawling, overconsuming amounts of land and resources and becoming more vehicle dependent
    How they should be:
    • Dense city offering diverse services within local area > residents less dependent on individual motorised transport > decrease resource use and decrease env impact and carbon footprint
  • Peter Calthorpe - 7 people-centered principles for building better cities:
    1. Preserve nat env and historical sites
    2. Create mixed use and mixed income neighbourhoods and mixed demographics
    3. Walkable and safe streets > pedestrianised
    4. Bike and cycle lanes
    5. Connect > interconnect road networks and decrease block size
    6. Ride > invest in transit e.g. bus, tram, train (BRT)
    7. Focus > link capacity for ppl using transport to population demand
  • Facts:
    • Cities are responsible for 70% of global carbon emissions
    • Cities responsible for 75% of global energy consumption
    • By 2050 ~ 70% of world's population will be living in cities
  • What is an ecological footprint?

    The area of land needed to provide the necessary resources and absorb the waste produced by an urban population
  • Ecological footprint stats:

    • London's covered twice the area of the UK in 2003
    • Tokyo is 3 times the size of Japan
    • HIC city footprint 10x higher than LIC city
  • 4 Pillars of urban sustainability:

    1. Social development
    2. Economic development
    3. Environmental management
    4. Urban governance
    1. Social Development
    • Provision of schools and healthcare
    • food supplies
    • green homes
    • clean water and sanitation
    • green public transport and energy
    • recreation areas
  • 2. Economic development:

    • Employment opps
    • Production and distribution of renewable energy
    • Investment in green tech and innovation
  • 3. Environmental management:

    • Waste and recycling management
    • Energy efficiency
    • Water management
    • Air quality conservation
    • Adaption to and mitigation of climate change
    • Forest and soil management
  • 4. Urban governance - the foundation that holds the other 3 pillars up:

    • Adoption of green urban planning and design strategies
    • Strategies to reduce inequalities
    • Strengthening of civil and political rights
    • Support of local, national, regional and global links
  • What does liveability mean?

    • The urban ideal of collectively improving everyone's quality of life both now and in the future
  • What is urban resilience?

    • The capacity of individuals, communities, businesses etc within a city to survive, adapt and grow
  • What are chronic stresses?

    • e.g. High unemployment,
    • Inefficient transport systems
    • Violence and crime
    • Food and water shortages
  • What are acute shocks?

    • E.g. terrorism events
    • Earthquakes
    • Tropical storms
    • Floods etc
  • Cities as systems Rodgers Model

    • In an unsustainable/ linear city ~ Proportional inputs and outputs
    • In London ~ 20% of waste goes to landfill and 7m tonnes of waste are produced per year, 3m from households and only 33% of pop recycle
    • In a sustainable/ circular city ~ less inputs and less outputs but more recycling
    • In London ~ ReLondon aims to increase recycling to 65% by 2030 and also implementation of ULEZ and SUDS
  • EXAMPLE: Copenhagen - blueprint for sustainable city - social aspects:
    • Only 2% on employees in Copenhagen work more than 40 hours a week - family, friends and hobbies > lower stress
    • Small independent shops
    • Investment in reservoirs means that the harbour is clean for swimming
    • Integreated public transport network and driverless metro, trains and buses
    • The incineration plant turns waste into energy and is covered by a year-round snowboard slope, one of longest in world
    • Lots of parkland and green space - 70 acre nature reserve
  • EXAMPLE: Copenhagen - blueprint for sustainable city - Economic aspects:
    • Electric bikes cheap to rent
    • Economic and financial centre of Denmark - national compaines and businesses in IT, biotech and pharmaceuticals
    • Highest wages and lowest unemployment rates
    • Reasonable rents
    • High tax but generous welfare > reduce inequality
    • Fair and egalitarian society
  • EXAMPLE: Copenhagen - blueprint for sustainable city - Environmental aspects:
    • 250 miles of cycle lanes > decrease congestion and improve health > one billion invested in bike lanes and super cycle highways > 45% cycle to work every day
    • Carbon neutral aim by 2030
    • green rooms mandatory > absorb 50-80% of precip and offer cooling to reduce UHI
    • Buses now green elec
    • New heating system that 95% use and near cooling system where cold taken from harbour water > saves 70% energy
    • 2/3 of hotels eco certified
  • EXAMPLE: Copenhagen - blueprint for sustainable city - government aspects:
    • Encourages cycling through projects like Cycleslangen cycle bridge (Snake bridge)
    • the 'finger plan' includes protection of greenbelt and limits urban sprawl
    • Citizens Dialogue Project > public participation in planning legislation for city
    • Stopped discharged wastewater to harbour
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > conserve natural environment:
    • Roof gardens and green roofs
    • Wind cowels - natural ventilation
    • 15% construction material recycled
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > Use brownfield sites:
    • Local materials for half construction > sourced within 35 miles
    • The land was previously used for spreading sludge from sewage works
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > reduce & safely dispose of waste:
    • Dual flush toilets and water efficient washing machines > decrease water use by 40%
    • on-site water treatment plant
    • green elec tariff and solar panels
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > provide open space:
    • Playing field
    • Sunspace
    • Private outdoor space and gardens
    • Allotments
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > involve local people:
    • car free streets > safer
    • Bridges between buildings
    • Workplaces
  • EXAMPLE - Bedzed (mixed use sustainable community) - characteristics of sustainable cities > Efficient transport system:
    • Car share system with car club
  • EXAMPLE - East village- characteristics of sustainable cities > Conserve historic env:
    • Reuse site from Olympic games
  • EXAMPLE - East village- characteristics of sustainable cities > Conserve natural env:
    • Green roofs on residential blocks > habitat and decrease flow of surface run off
    • 300,000 plants
  • EXAMPLE - East village- characteristics of sustainable cities > Use brownfield sites:

    • wetland area > recycle rainwater to flush toilets and water plants
  • EXAMPLE - East village- characteristics of sustainable cities > Reduce and safely dispose of waste:
    • Athletes village now apartments with energy efficiency and insulation to decrease heat loss
    • 99% waste recycled
    • water use decreased by 50% compared to other urban areas and 30% less energy due to combined heat and power
  • EXAMPLE - East village- characteristics of sustainable cities > provide open space:
    • 37& of land is green
    • 10 hectares of parkland and 300,000 plants > habitats and biodiversity
    • Shared private green space
    • Large green park with fruit orchids
  • EXAMPLE - East village- characteristics of sustainable cities > involve local people:
    • 10,000 new jobs by 2030
    • large health centre and school
    • 35 independent shops and cafes and bars so don't travel to shop
    • half of homes affordable with car parking
  • EXAMPLE - East village- characteristics of sustainable cities > efficient transport system:
    • integrated transport with local trains and buses that connect to London underground
    • good cycle and walking routes
    • car parking