Urbanisation Revision Notes

Urban areas grow swiftly due to a combination of physical, economic, and social factors that attract people from rural regions. Physical factors include the presence of natural resources, favourable climate, and strategic location such as proximity to rivers or coasts, which support trade and industry. For example, a city near a major port may expand quickly because it facilitates import and export activities.

• Physical factors: resource availability, climate, location advantages.
• Economic factors: job opportunities in manufacturing, services, and trade.
• Social factors: better education, healthcare, and lifestyle options in cities.

Rural areas often experience population decline as people migrate to urban centres seeking improved livelihoods. This movement is driven by push factors such as limited farming opportunities, poor infrastructure, and lack of services in rural zones. Pull factors include higher wages, diverse employment, and access to education and healthcare in cities.

Migration is typically selective, with young adults moving first, which can lead to an ageing rural population and labour shortages in agriculture.

• Push factors: poverty, limited services, environmental challenges in rural areas.
• Pull factors: employment, education, healthcare in urban centres.
• Selective migration leads to demographic changes in rural communities.

Urban growth impacts both the expanding city and surrounding rural areas. In urban zones, rapid expansion can cause overcrowding, increased pollution, traffic congestion, and strain on infrastructure such as water supply and sanitation.

In rural areas, land may be converted from agriculture to housing or industry, reducing food production and altering ecosystems. Socially, rural communities may lose cultural traditions and face economic decline.

Environmental degradation includes loss of green spaces and increased waste generation.

• Urban effects: overcrowding, pollution, infrastructure pressure.
• Rural effects: loss of farmland, environmental changes, social disruption.
• Both areas face challenges requiring careful management.

Informal settlements, often called squatter or slum areas, arise when urban growth outpaces formal housing provision. These settlements typically lack legal land tenure, basic services like clean water, sanitation, electricity, and are constructed with substandard materials.

Residents face health risks, insecurity, and limited access to education and employment. Informal settlements are common in rapidly growing cities of developing countries due to rural-urban migration and insufficient urban planning.

• Lack of legal recognition and basic services.
• Poor housing quality and overcrowding.
• Health, safety, and social challenges for residents.

To address urban challenges, governments and organisations implement various strategies. Urban planning can control expansion, designate land uses, and improve infrastructure. Investment in affordable housing reduces informal settlements.

Community development initiatives empower residents to improve living conditions. Environmental regulations help reduce pollution and protect green spaces.

Examples include upgrading slums with sanitation and water supply, improving public transport to reduce congestion, and promoting rural development to reduce migration pressure.

• Sustainable urban planning and zoning.
• Affordable housing projects and slum upgrading.
• Improved infrastructure and public services.
• Rural development to balance migration flows.