OCR GCSE Geography B (J384) — Urban Futures
Every time you drop a pin on a digital map, you are identifying a specific location, but geographers look at location in two distinct ways: the physical ground and the connections around it.
To describe a city's location, first look at its Site: the actual land a settlement is built on, including physical traits like relief and altitude. Then, consider its Situation: the location of a settlement relative to surrounding human and physical features, such as transport links.
First, consider Birmingham, an Advanced Country (AC) city. It is sited on the Birmingham Plateau (an upland area at a 140m altitude) at an original crossing point on the River Rea. Its underlying Triassic Sandstone provided early groundwater, though modern demand requires a 73-mile Aqueduct from Wales.
Then, look at its situation. Birmingham sits centrally in the West Midlands, acting as a major transport hub connected by the M6 motorway. In contrast, Bristol's site sits at the confluence of the Rivers Frome and Avon, while its situation makes it a major Nodal Point on the M4 corridor, connecting London to South Wales.
Finally, Lagos, a Low-Income Developing Country (LIDC) city, is situated on the Gulf of Guinea. Its original site was a fishing village on a sheltered lagoon, making it a Wet Point settlement with a reliable water supply, whereas a Dry Point settlement is deliberately raised and does not have the same risk of flooding.
Why do some cities dictate global financial markets while others only serve local farming communities?
Cities are ranked by their sphere of influence. A World City exerts major global power through finance, politics, and culture, while a Megacity is defined simply by having a population exceeding 10 million people, regardless of its economic power.
Understanding human movement explains why certain cities rapidly expand while rural areas empty out.
City populations fluctuate due to Net Migration (the balance between immigration and emigration) and Urbanisation (the rising proportion of urban dwellers). In the UK, astronomical housing costs in London act as a national push factor, driving young professionals toward cities like Birmingham and Bristol where living costs are more manageable.
It is a surprising fact that over 300 different languages are spoken in Birmingham today, highlighting how deeply migration transforms an urban landscape.
By analyzing migration patterns, we can see how population movement directly changes both the scale and the character of a city. First, migration drives growth directly through numbers, pushing Lagos into megacity status (over 15 million people) and causing severe urban sprawl.
Then, it drives growth indirectly; migrant populations are typically youthful, leading to a high Natural Increase as birth rates significantly outpace death rates.
Finally, this rapid growth deeply impacts the Character of a City—its specific social, economic, and cultural identity.
You might notice a neighborhood changing over a few years, but calculating the exact percentage increase reveals how demographic shifts completely redraw the map.
The impact of migration on a city's population can be measured using the percentage increase formula:
A city's population grew from 850,000 in 2011 to 918,000 in 2021 due to net migration. Calculate the percentage increase in the population.
Step 1: Identify the values.
Step 2: Substitute into the equation.
Step 3: Calculate.
Students often confuse 'site' and 'situation'. Remember that 'site' is the physical ground the city sits on (like relief or rivers), while 'situation' is its location relative to other places (like transport links).
For 'Describe' questions about a city's location, examiners expect place-specific detail (PSD), so you must name specific motorways (e.g., M4) or rivers (e.g., River Avon) rather than just saying 'it is near a road'.
When analyzing how migration changes a city, make sure to clearly separate 'growth' (population numbers, urban sprawl, natural increase) from 'character' (culture, food, politics, religion).
Remember that migration drives population growth indirectly as well as directly, because migrant populations are typically young and increase the birth rate, leading to a higher natural increase.
Site
The actual land on which a settlement is built, including its physical characteristics such as relief, soil, water supply, and altitude.
Situation
The location of a settlement relative to its surrounding human and physical features, such as proximity to other cities or transport links.
Advanced Country (AC)
A country that is wealthy and has a high quality of life.
Plateau
An area of relatively level high ground.
Aqueduct
A human-made channel for conveying water, typically in the form of a bridge or tunnel.
Nodal Point
A place where several transport routes, such as roads or railways, meet.
Low-Income Developing Country (LIDC)
A country that is poor and has a low quality of life.
Wet Point
A settlement site located near a reliable water supply.
Dry Point
A settlement site raised above surrounding land to avoid flooding.
World City
A city that has a major influence on the world through finance, trade, politics, and culture.
Megacity
A city with a total population of over 10 million people.
Net Migration
The difference between the number of people moving into a city (immigration) and those moving out (emigration).
Urbanisation
The increase in the proportion of people living in towns and cities compared to the countryside.
Studentification
Social and environmental change caused by very large numbers of students living in particular areas of a city.
Natural Increase
When the birth rate is higher than the death rate, calculated as births minus deaths.
Character of a City
The specific social, economic, cultural, and political identity of an urban area, shaped by its history, people, and architecture.
Ethnic Enclave
A geographic area with high ethnic concentration.
Superdiversity
A level of population diversity that goes beyond ethnicity to include varied legal statuses, age structures, and labour market experiences.
Descriptive Representation
The idea that elected representatives should reflect the demographic characteristics of the people they represent.
Informal Sector
Employment outside official recognition and regulation, such as street vending, meaning workers do not receive legal protections or guaranteed wages.
Put your knowledge into practice — try past paper questions for Geography B
Site
The actual land on which a settlement is built, including its physical characteristics such as relief, soil, water supply, and altitude.
Situation
The location of a settlement relative to its surrounding human and physical features, such as proximity to other cities or transport links.
Advanced Country (AC)
A country that is wealthy and has a high quality of life.
Plateau
An area of relatively level high ground.
Aqueduct
A human-made channel for conveying water, typically in the form of a bridge or tunnel.
Nodal Point
A place where several transport routes, such as roads or railways, meet.
Low-Income Developing Country (LIDC)
A country that is poor and has a low quality of life.
Wet Point
A settlement site located near a reliable water supply.
Dry Point
A settlement site raised above surrounding land to avoid flooding.
World City
A city that has a major influence on the world through finance, trade, politics, and culture.
Megacity
A city with a total population of over 10 million people.
Net Migration
The difference between the number of people moving into a city (immigration) and those moving out (emigration).
Urbanisation
The increase in the proportion of people living in towns and cities compared to the countryside.
Studentification
Social and environmental change caused by very large numbers of students living in particular areas of a city.
Natural Increase
When the birth rate is higher than the death rate, calculated as births minus deaths.
Character of a City
The specific social, economic, cultural, and political identity of an urban area, shaped by its history, people, and architecture.
Ethnic Enclave
A geographic area with high ethnic concentration.
Superdiversity
A level of population diversity that goes beyond ethnicity to include varied legal statuses, age structures, and labour market experiences.
Descriptive Representation
The idea that elected representatives should reflect the demographic characteristics of the people they represent.
Informal Sector
Employment outside official recognition and regulation, such as street vending, meaning workers do not receive legal protections or guaranteed wages.
