A city divides into land-use zones
A city's built-up area splits into land-use zones. The CBD (central business district) is the commercial core -- high-rise offices and stores, the highest land values. The inner city (zone of transition) surrounds it -- older terraces and ageing factories. Further out are lower-density suburbs with gardens, then the rural-urban fringe, where estates and retail parks meet the countryside. Industry clusters along transport corridors, needing cheap land with room to expand.
Burgess rings vs Hoyt sectors
The Burgess (concentric-ring) model shows land use in RINGS around a central CBD -- inner city, suburbs, then rural-urban fringe -- each a stage of outward growth. The Hoyt (sector) model shows WEDGE-shaped SECTORS radiating along routes from the CBD -- industry along a railway, high-class residential in one direction, low-class near the industry. Both are simplifications; examiners reward COMPARATIVE use ("unlike rings, Hoyt's zones form wedges") over describing colours.
Bid-rent: accessible land costs most; London
Land use follows the bid-rent principle: the CBD is the most ACCESSIBLE point (all roads and railways converge), so LAND VALUES peak there. Only high-return users (stores, banks) afford CBD rents, so they build UPWARDS. With distance, land value falls, so use shifts to terraces, then suburbs with gardens, then fringe estates. London shows this: its CBD (City of London, West End) has the highest values and tallest buildings, and retail parks reach the fringe within the M25.
Drawn from real examiner reports.
Comparing models by diagram, not pattern
Asked to compare urban land-use models, weaker candidates describe the diagrams -- which colour is which, which shape looks biggest -- instead of comparing the PATTERN. A good comparison uses model vocabulary: "Burgess shows RINGS around the CBD, WHEREAS Hoyt shows WEDGE-shaped sectors along transport routes." The term "wedge" is rarely used.
Digest (filed under ## 2.3 Coasts but concerning urban land-use models): candidates focus on surface diagram details rather than using the models comparatively, and "wedge" (the Hoyt sector) is rarely used (s23 P22 Q3b).
Naming "pollution" without the type
"Pollution" alone is a repeated vague term in the reports; it earns no credit until the TYPE is named. Air (traffic exhaust, factory emissions), noise (traffic, industry), water (sewage or industrial discharge) and visual pollution (dereliction, litter) are all creditable, but only when named and linked to a cause ("CBD congestion causes air pollution").
Digest (## Cross-cutting exam technique): vague/unqualified terminology is the most repeated credit-blocker, with "pollution" (unspecified type) named explicitly across all four sittings.
Congestion causes vs solutions mixed
When a question asks for the CAUSES of congestion (narrow historic streets, converging routes, high car ownership) or its SOLUTIONS (ring roads, park-and-ride, congestion charging), candidates often mix the two. Decide which the command wants: a cause is WHY congestion happens; a solution is what REDUCES it. Listing both when one is asked earns nothing extra.
Digest (filed under ## 1.7 Urbanisation but concerning urban traffic congestion): causes vs solutions are frequently conflated (s23 P13 Q2c).
Scheme benefits, not the mechanism
Asked to explain HOW a scheme (e.g. a Metro) reduces congestion, candidates describe passenger advantages -- it is "quicker" or "more comfortable" -- not the mechanism examiners want: moving commuters from cars onto the Metro REMOVES vehicles from the road, cutting the traffic that causes congestion. State the road mechanism, not the rider's convenience.
Digest (filed under ## 1.7 Urbanisation but concerning congestion schemes): explaining a specific scheme (e.g. Metro), candidates describe general user advantages rather than the mechanism reducing road congestion (w23 P12 Q2b(i)).
CBD vs inner city confused
The CBD and the inner city are not the same zone. The CBD is the commercial core -- offices, department stores, the highest land values. The inner city (zone of transition) is the SEPARATE ring of older, high-density housing and ageing light industry SURROUNDING the CBD. Treating them as one loses marks: the inner city lies just outside the CBD, not within it.
Urban decline vs regeneration
These opposite ideas are easily swapped. Urban decline is an area getting WORSE on its own -- derelict buildings, lost jobs, falling population. Urban regeneration (renewal) is the deliberate SCHEME to reverse it -- investment, redevelopment, new jobs. Decline is the problem, regeneration the response; describing one when the other is asked answers the wrong question.
Land values peak in the CBD, not the edge
Because retail parks at the fringe are large and busy, students assume land there is most expensive. Under bid-rent, land value follows ACCESSIBILITY: the CBD is the most accessible point (all routes converge), so it has the HIGHEST values despite the fringe's bigger buildings. Out-of-town land is cheaper, so cramped CBD land builds upwards instead.
7-marker: name scheme, mechanism, assess
The 7-mark urban-problem question rewards a specific mechanism plus judgement. Name a real scheme (London's Congestion Charge), explain its mechanism (a daily charge cuts car journeys), assess success (zone traffic fell), and note a limitation (congestion partly returned).
Describing an urban land-use transect
For a land-use transect from the CBD outward: state the trend (height and intensity fall with distance), then name each zone -- CBD, inner city, suburbs, fringe -- quoting the figures (storeys, distances). Marks come from the whole sequence with data, not one zone.
Comparing the two land-use models
Compare Burgess and Hoyt with the shape words: Burgess uses concentric RINGS, WHEREAS Hoyt uses WEDGE-shaped SECTORS along routes. Burgess's rings imply even outward growth; Hoyt's sectors vary by direction. Name "rings" and "wedges" explicitly.
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