Brownfield site
Land that has been used, abandoned and now awaits a new use. Commonly found around urban areas, particularly in the inner cities
Dereliction
Abandoned buildings and wasteland
Economic opportunities
Chances for people to improve their standard of living through employment
Greenfield site
A plot of land, often in rural or on the edge of an urban area, that has not yet been subject to any building development
Inequalities
Differences between poverty and wealth. Inequalities may occur in housing, access to services and safety and security
Integrated transport systems
When different methods of transport systems join together, which makes journeys smoother and public transport is more appealing. May lead to a fall in congestion due to less road users
Mega cities
A city with a population over 10 million people
Migration
When people move from one place to another with the intention of settling there
Natural increase
The birth rate minus the death rate
Pollution
The presence of chemicals, noise, dirt or other substances which have harmful effects on the environment
Sanitation
Measures designed to protect public health with the provision of clean water and disposal of sewage and waste
Social deprivation
When an individual or area is unable to access services, decent housing, adequate income or local employment
Social opportunities
Chances for people to improve their quality of life such as access to education and healthcare
Squatter settlement
An area of low quality housing, at times lacking amenities such as water supply, sewage and electricity, which often happens on the land not owned by the occupants
Urbanisation
The process of which an increasing percentage of a country’s population lives in towns and cities
Urban area
A built up area with a high dense population