Urbanisation vs urban growth: two causes
Urbanisation is the rising percentage of a population living in urban areas -- unlike urban growth, the absolute rise in urban residents (a city can grow while the percentage stalls). Two causes combine: rural-urban migration (pushed by rural poverty, land shortage or drought; pulled by jobs, wages, schools and hospitals) and natural increase (migrants are mostly young adults, so births exceed deaths and the city grows from within).
Squatter settlements: traits cause problems
A squatter (informal) settlement grows without planning permission or legal ownership, at a city's edge. Traits: unplanned layout; hazardous land (steep slopes, floodplains); temporary materials (iron sheet, wood, plastic); very high density; little clean water, sanitation or electricity. These cause its problems: flooding, landslides, disease, fire, and insecure tenure that deters investment. Tie "problems" answers to the housing/site, not general hardship.
Nairobi & Kibera, Kenya: worked example
Nairobi, Kenya's capital, grew rapidly as migrants sought jobs and services, with natural increase adding more. Growth outpaced formal housing, so large informal settlements grew -- best known is Kibera: very high density, limited water and sanitation, insecure tenure. Kenya's Slum Upgrading Programme (KENSUP) piloted Soweto East in Kibera: new housing, roads and water, combining self-help and site-and-service. Progress is slow, only a minority rehoused.
Drawn from real examiner reports.
Congestion: causes ≠ solutions
Asked about traffic congestion, candidates conflate its causes with its solutions. Causes: a fast-rising population, more vehicles, and road capacity that hasn't kept pace. Solutions are separate: a metro or bus rapid transit system, congestion charging, restricting car access. Answer whether the question asks WHY congestion happens or HOW to reduce it.
Digest (## 1.7): traffic-congestion causes vs solutions are frequently conflated (s23 P13 Q2c).
Urbanisation ≠ urban growth
The core definition trap. Urbanisation is a percentage -- the share of a population in urban areas -- rising only if the urban population grows FASTER than the rural. Urban growth is the absolute number of extra urban people, which can rise even as the percentage levels off. "Percentage of the population" versus "the number of people" earns the mark.
Natural environment ≠ people impacts
Urban sprawl has two impact sets, and candidates answer the wrong one. Asked about the natural environment, credit needs deforestation and habitat loss, more run-off and flooding, and water/air pollution. Weaker answers give problems for PEOPLE -- traffic, crowded schools -- missing a question emboldening "natural environment". Check which noun the command attaches to.
Digest (## 1.7): urban sprawl impact on the natural environment is a recurring confusion -- candidates default to problems for PEOPLE (traffic, pollution) instead of the natural environment (deforestation, habitat loss) (s23 P11 Q2a(iv); w22 P12 Q2c).
Describe the squatter photo, don't judge it
Asked to describe a photograph of a squatter settlement, candidates often write value judgements ("it looks poor") instead of what can be observed. Credit comes from observable features: building materials (iron sheet, wood, plastic), roof pitch, spacing, unpaved streets, and any visible lack of services. "Describe" wants what the photo shows, not an opinion.
Digest (## 1.6 squatter-settlement content, reassigned to 1.7): squatter-settlement photographs are often answered with value judgements rather than describing observable features (materials, roof pitch, spacing) (s22 P11 Q2b(i)).
Name the scheme type, not a vague idea
Asked how squatter conditions can be improved, weak answers give a vague idea ("improve the housing") and stay at Level 1. Credit needs a named scheme and its mechanism: self-help (tenure, tools and loans to upgrade their OWN home in stages) or site-and-service (the authority installs roads, water and power BEFORE residents build). Name one scheme and its mechanism.
Digest (## 1.6 squatter-settlement content, reassigned to 1.7): housing-improvement case studies stay at Level 1 because candidates name a general idea, not a specific scheme type -- site-and-services, self-help (s23 P12 Q2c).
Housing problems ≠ general resident problems
When a question asks for problems from squatter living conditions/housing, candidates drift into general resident problems (unemployment, healthcare) not tied to the housing. Keep the answer on the housing and site: flooding and landslides, disease from absent sanitation, fire through packed dwellings, and insecure tenure. Match problems to the emboldened phrase.
Digest (## 1.6 squatter-settlement content, reassigned to 1.7): asked for problems from squatter LIVING CONDITIONS specifically, candidates drift into general resident problems (unemployment, healthcare access) not tied to the housing (s22 P11 Q2b(ii)).
Self-help ≠ site-and-service
A testable wrong belief: that self-help and site-and-service schemes are the same. Self-help starts with people ALREADY on a site -- given tenure, tools and loans to upgrade their OWN home in stages. Site-and-service starts with EMPTY land -- roads, water and power go in FIRST, then serviced plots are allocated to build on. The mechanism and sequence differ.
Digest (## 1.6 squatter-settlement content, reassigned to 1.7): housing-improvement case studies stay at Level 1 when candidates name a general idea without a specific scheme type (site-and-services, self-help) (s23 P12 Q2c).
Level 3 on the urban-growth 7-marker
For the named-city 7-marker: name a real city and its informal settlement (Nairobi, Kibera) -- a country alone stays Level 1. Detail BOTH halves -- causes (push/pull, natural increase) AND problems (settlement traits, city strain) -- linking each cause to its effect.
Name the scheme's road-congestion mechanism
Explaining a congestion scheme (metro, bus transit), candidates give general user advantages ("cheaper") not the mechanism cutting ROAD congestion. It carries people who would otherwise drive, SO fewer cars use the roads. Tie it to removing vehicles, not comfort.
Match the command and emboldened word
Marks are lost to the wrong question path. Check the command word and emboldened key word: "describe" wants what is shown, "explain" wants why; "natural environment" excludes people; "problems" excludes benefits. Name the precise process, place or figure, not vague terms.
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