Geo 3A: Urban Processes in Perth and NYC Flashcards
What is invasion and succession?
Invasion is when a business or function moves into an area that is dominated by a different function.
Succession is when this invading function becomes the common or dominant one – it has ‘taken over’ the area.
Creates a change of land use in the area.
How does invasion and succession create change?
- Considerable land use function change in IMZ and RUF
- Retail and business functions often forced out from the CBD due to limited space and high land values. IMZ attractive – still accessible to CBD and accessible, larger often older properties which can be renovated and converted to suit their new function, more affordable.
- In RUF mainly residential that invades, growing cities = expanision of suburbs into surrounding rural environment(urban sprawl)
- RUF where undesirable functions located – industrial, airports, prisons, rubbish dumps forced to move out as city expands
- Urban blight – property owners reluctant to upgrade properties due to the high probability of invasion by central business functions.
- Urban shadow – in RUF, farmers uncertain of future of farms, competing residential and industrial functions force land values up, as wait for development the farmland and buildings become rundown and degraded.
- Newer growth residential zone is example of succession, where RUF has become dominated by residential land uses
Invasion and succession in Perth
Invasion of professional services from the CBD into West Perth – medical professionals, law and mining firms together with restaraunts have moved into buildings not originally designed(e.g. an old house) for them in order to gain accessibility
Invasion and succession in New York
Brooklyn
• Demand for residential housing = residential function has invaded and succeeded the once dominant industrial areas of the city
• Industrial areas – SoHo – Manhattan Williamsburg – Brooklyn – experienced steady decline in industry since 1960s
• Centrifugal forces relocated many manufacturing operations – blighted and decayed areas left with very cheap rents, artists began to occupy the large light filled industrial spaces
• Gritty appeal made popular as restaraunts, bars and galleries created unique neighbourhoods with a more personal ‘urban village’ feel than in high rise of Manhattan
• High accessibility to employment and Manhattan = an increase in higher socio economic residents seeking cheap rents and properties – changes demographic of area and initiates urban renewal in the form of gentrification and residential development which has succeeded former industrial function.
What is land use competition?
Competition that occurs for land between the different functions – for access to customers, facilities, services.
How does land use competition create change?
- Causes land values to be highest in the CBD and generally decline going outwards
- Land use to be intensice in the centre and more space extensive towards the edge
- Causes zones of different funtions – functions that benefit most from maximum accessibility are in the centre and those that benefit the least are on the outskirts
Land use competition in Perth
Peak land values in the block bounded by Hay, William and Barrack Street and St George’s Terrace, there are other accessible and desirable areas that attract space-intensive commercial, retail and some industrial funcitions. These areas are located along major transport links e.g. intersections, creating ribbon development of central business-type functions(Albany highway in Victoria park).
What are planning regulations?
The limits and regulations set in place for a developing city.
How do planning regulations create change?
Provide a framework for the city to develop within, Processes are often formalized through the planning process.
Urban planning tries to group together compatible land uses(agglomeration) orr establish the separation of incompatible land uses(segregation) – airports, industrial and residential, e.g. creating green buffer zones.
Apportions land use zones according to population growth predictions.
Creates accessibility sites such as industrial estates and regional shopping centres.
Planning regulations in Perth
Affected morphology of the city, 1970s corridor plan started growth along planned corridors. Has created 4 main corridors of growth, creating Perth’s star shape.
Planning regulations in New York
Central park planned to keep green areas, affected morphology of NYC.
Description of Transportation
Shapes and develops cities
How does transportation create change?
- Has shaped and developed Perth. Freeway and railway systems focus upon the CBD and reinforce its importance. Both of these transport systems were developed and expanded during 1980s and 1990s.
- Development of transportation in city has been in line with the low density of the city’s sprawl.
- CBD is hub of transport
Why is transportation changing?
Development is occurring along major transport routes.
Examples of transportation in Perth
Mitchell and Kwinana freeway, Southern rail line, South West highway