Define a city, megacity, and global city.
City: A large urban settlement
Megacity: A city which has a population of over 10 million
Global city: One which is well connected by the process of globalisation.
Describe and explain the distribution of megacities and how this has changed over time.
The number of megacities has increased over time- in 1950, there were only two, and today there are at least 33
Most of these are in LIDCs and emerging and developing countries in Asia, Africa and Latin America
What are the two main causes of urban growth?
Natural increase- the birth rate surpassing the death rate
Rural-urban migration- people moving out of rural areas into urban areas
Which three categories can countries be classified as?
(LIC) Low Income Country e.g. Bangladesh
(HIC) High Income Country e.g. Germany
(NIC) Newly Industrialised Country eg India
What are some push factors (from rural areas)?
Wars and civil strikes
Agricultural problems
Poor social provisions- healthcare, education, culture
Poor employment prospects
What are some pull factors (from urban areas)?
Better social provisions- healthcare, education, culture
Better employment prospects
Better quality of life
How are rural areas positively impacted by rural-urban migration?
More land per person
More resources per person
Money may be sent home by migrants
How are rural areas negatively impacted by rural-urban migration?
Birth rate will decrease and death rate increase
Fewer economically active people in the community
Families are split up
How are urban areas positively impacted by rural-urban migration?
Increased economic activity
Increase in cultural wealth
More knowledge and skills in the community
How are urban areas negatively impacted by rural-urban migration?
Pressure on housing availability
Tensions between existing community and immigrants
Pressure on social provisions such as healthcare and education
Why is Mumbai significant?
One of the world’s most important financial centres
Home of Bollywood- a film industry whose films are known worldwide
A trade link between India and Europe
How has Mumbai grown?
Rural-urban migration- the mechanisation of farming has reduced the number of jobs available in rural areas but the industrialisation of Mumbai, creating more jobs, has meant that over 1000 migrants arrive in Mumbai daily
Natural increase- many migrants are of fertile age, it is common to have a large family in India; the birth rate is 20.1 per 1000
Education- there are more opportunities in Mumbai than in other areas of India. Many students move for education and do not come home.
How has Mumbai’s growth created opportunities?
Education- Mumbai is home to a world-renowned university and lots of primaries and secondaries. The literacy rate is 89.7%
Healthcare- Mumbai has more hospitals than any other Indian city, and is very affordable and so is accessible to local people
Economy- Mumbai accounts for 6% of India’s GDP and 40% of its foreign trade
How has Mumbai’s growth created challenges?
Poor Housing: It is estimated that 72% of Mumbai’s population is living in slums- overcrowded, unsanitary living spaces
Air Pollution: there are over 22 million vehicles registered in Mumbai and so there are lots of nitrous oxides and particulates- causing respiratory illnesses
Poor transport services: Roads are often in bad condition and trains are overcrowded- in 2016, an average of 8 people a day died on the trains
What is life in Dharavi like?
Strong sense of community
Many business opportunities
Low rent
Access to social provisions such as education
How does recycling in Dharavi work?
8,000 tonnes of waste is generated in the city each day
80% of Mumbai’s waste is recycled- 4x the average rate of the UK
Some litter is repurposed as building material to house Dharavi’s inhabitants and some is sold to to scrap dealers
What are the economic positives to Vision Mumbai?
Redevelopment will attract developers and businesses
Fewer infections mean more people are economically active
More taxes can be collected for economic investment for the city
What are the environmental positives to Vision Mumbai?
People no longer have to live among waste- more toilets are built as well as a sewage network
Natural environment is less contaminated by human waste and industry pollutants
Encouraged movement out of the city will reduce congestion and air pollution
What are the social benefits to Vision Mumbai?
Less crowded and more affordable housing is provided to residents of Mumbai
Better quality of life due to better sanitation and access to clean water
Less illness and death
Why is London significant?
London has global reach through its major airports Heathrow and Gatwick
It is of major economic importance due to the City of London and the Stock Exchange.
Located on the River Thames which has helped its trade links
How has London grown?
Rural-urban migration- in the 1800s, many farmers flocked to London to escape their farming lifestyle and find industrial jobs
Natural increase- post-WW2, there was a massive baby boom
EU Migration- lots of Eastern European countries joined the EU in 2004, and can therefore move to other EU countries whenever they wish
How has London’s growth provided opportunities?
Education- London has lots of excellent schools- both public and private- that exceed national averages
Culture- London is home to the West End theatre and many major stadiums for music and sports
Diversity- there is a range of backgrounds represented in London- each with their own foods and cultures
How has London’s growth created challenges?
Crime- knife and gun crime has increased massively
Housing- the quality of council housing has decreased and it is more difficult to find a house let alone afford one
Employment- there is lots of competition due to a large population which means lots of informal and illegal jobs are available and there are many homeless people
What solutions are there to improve urban sustainability in London?
Water conservation - dual flush toilets in businesses and homes, collecting rainwater for gardens and the use of water meters in properties
Energy conservation- insulating businesses and homes, use of double and triple glazing in buildings, use of low-energy lighting and appliances
Waste recycling- recycling of household and commercial waste, adopting a 'reduce, reuse, recycle' policy, using 'grey' water to flush toilets in public buildings
Creating green spaces- increasing the number of parks and planting more trees
What sustainable transport schemes are in place?
Bike sharing scheme- 'Boris Bikes' have encouraged many people to cycle, reducing traffic congestion.
London Underground- encouraged more people to use public transport.
Oyster Card- allows people to use buses, trains and tubes quickly and efficiently, making it more appealing
Congestion Charging Zone - this has discouraged people from driving their own vehicles in central London.
What are the environmental positives of BedZed?
Low energy lighting and appliances
Solar panels
Rain water is collected to flush toilets
Triple glazed windows provide insulation
Wind cowls ventilate buildings
What are the economic positives of BedZed?
Less electricity needs to be used in heat insulation
Less electricity needs to be used in ventilation
Encouraged use of public transport or bikes are cheaper
What are the social positives of BedZed?
Lots of communal spaces- parks, carsharing etc
Encouraged public transport requires social interaction
Mix of housing so there are affordable options- 25% is social, 25% rental and 50% private
What are four urban trends seen in advanced cities/countries?
Suburbanisation- when suburban areas grow outwards as new houses and services are built
Counterurbanisation- when people move from urban areas to rural areas
Reurbanisation- when people move back into previously declined urban areas that have been improved
Infill: the construction of new buildings in underutilized or vacant land lots within urban areas
What are the four main reasons for counter-urbanisation?
Increase in counter-ownership
Urban areas becoming increasingly unpleasant areas to live
People of retirement age moving out of cities
People do not have to travel into the city centre for work and so choose to live on the outskirts of cities
What is the cycle of rural decline?
People leave rural areas for more opportunities in cities
Employers find it difficult to recruit labour
Less investment is given to the area and businesses are forced to shut down
Shops and services decline
People notice the decline and lower quality of life
What conflicts arise from rural change?
People who migrate to rural areas pay high prices for houses which results in young villagers being unable to afford a house in their village and must move away.
The newcomers may do their shopping in a large retail park on the edge of the city where they work. The result is that fewer people buy from the local village shop which might have to close. Village pubs close and are converted into expensive homes. Increase in internet banking has badly affected small rural branches.