Factors affecting the pattern of urban economic activity in cities

Urban economic activities, such as retail, commercial, and industrial functions, are not randomly distributed within cities. Their patterns are influenced by various economic and geographical factors, particularly the cost and accessibility of land.

Influences on urban economic patterns

• Bid rent theory - This concept explains that land value, or bid rent, is highest at the city centre due to its accessibility to public transport and limited availability. As a result, businesses compete for central locations, driving up prices.
• Decreasing land values - Land prices generally drop as distance from the city centre increases, though there are smaller peaks in value at major transport intersections where accessibility is enhanced.
• Accessibility and space - Central areas historically offered the best access to transport networks, making them desirable for economic activities, while peripheral areas provide more space at lower costs for certain types of development.

Retail land use and the changing retail hierarchy

Retail activities in cities are organised in a hierarchy based on the type of goods sold and the location of outlets. This structure has evolved over time due to social, economic, and technological changes.

Hierarchy of retail outlets

• Low-order goods - These are everyday items sold in neighbourhood stores and small shopping parades, catering to local, frequent needs.
• High-order goods - These include more specialised or expensive items found in high street shops and department stores, typically located in central areas.
• Out-of-town retail - Superstores and retail parks on edge-of-town sites offer a wide range of goods, benefiting from good road access and space for expansion.

Characteristics of central shopping areas

Central shopping zones or high streets host department stores, chain stores, and specialist shops, often within pedestrianised malls for ease of access. However, modern retailing trends show a move towards out-of-town superstores and retail parks due to their accessibility and potential for growth.

Reasons for changes in retail patterns

• Population shifts - Changes like smaller households and an ageing population influence demand for different types of retail.
• Suburbanisation - Wealthier households moving to suburbs increase the need for retail in peripheral areas.
• Technological advances - Innovations such as widespread ownership of deep freezers enable bulk shopping, supporting large out-of-town stores.
• Economic growth - Rising living standards and increased car ownership make out-of-town shopping more feasible.
• Central challenges - Congestion and high land prices in city centres push retail development to less expensive, less crowded edge-of-town locations.
• Social trends - More women entering the workforce alters shopping habits, often favouring convenient, one-stop retail options outside city centres.

Commercial land use in the central business district (CBD)

The central business district (CBD) serves as the commercial heart of a city, where economic activities are concentrated due to high accessibility and land values.

Structure of the CBD

Core area:

• Known as the peak land value intersection (PLVI), this is the most expensive and busiest part of the CBD.
• Features high concentrations of banks, businesses, and department stores.

Frame area:

• Surrounding the core, this zone includes transport terminals, office spaces (e.g., solicitors), wholesalers, warehouses, car sales/services, specialist services (e.g., medical), and some derelict land or limited light manufacturing.

Key characteristics of the CBD

• The CBD shows multi-storey development and functional zoning (similar activities clustering together, like banks or shoe shops).
• It has high pedestrian density in pedestrianised zones and vertical zoning in some areas.
• It has a low residential population and lacks heavy manufacturing industries.
• As the most accessible area to public transport, the CBD remains a focal point for commercial activities despite challenges.

Factors contributing to the decline of CBDs

While the CBD is traditionally the economic hub of a city, several factors have led to its decline in importance as businesses and consumers shift towards peripheral locations.

Reasons for CBD decline

• Increased car ownership - Greater personal mobility has boosted 'leisure' shopping in out-of-town locations, reducing CBD footfall.
• Planning policies - Urban expansion policies often encourage out-of-town developments, diverting investment from central areas.
• City council incentives - Councils attract new industries by offering greenfield sites on city outskirts for development.
• Cost advantages of peripheral sites - Companies find suburban locations cheaper, closer to customers and staff in suburban areas, and with better environments.
• Negative perceptions of CBDs - City centres are often seen as dirty, unsafe, with outdated infrastructure, deterring visitors and businesses.
• Urban sprawl - Progressive suburbanisation means city centres can be far from where many people live, reducing their relevance.
• Congestion issues - Traffic congestion in CBDs limits accessibility, pushing people towards less crowded peripheral areas.
• Lack of coordinated investment - Investment in city centres often lacks a unified plan, leading to inefficiencies.
• High costs in CBDs - Expensive business rates, rents, and land costs make central locations less attractive for development and maintenance.
• Appeal of peripheral sites - Investors and businesses are drawn to edge-of-town areas with good access, pleasant environments, and often lower operational costs.

Locations of industrial activity in urban areas

Industrial activities in cities are strategically placed based on historical infrastructure, accessibility, and zoning considerations to balance economic needs with residential concerns.

Common locations for industrial zones

• Inner-city areas - Often located near railways and canals, these zones were historically important for transport of goods and raw materials, though many are now repurposed or declining.
• Brownfield suburban sites - Found close to airports or major roads, these previously developed areas offer space and connectivity for modern industrial needs.
• Peripheral locations - Situated away from residential areas to minimise noise, pollution, and traffic impacts, these sites often provide room for large-scale operations and future expansion.