Terracing Effect

A term used to describe the closing of gaps between houses by extending the houses sideways, for example a double garage between semi-detached properties.

Topography

A description (or visual representation on a map) of the shape of the land, for example, contours or changes in the height of land above sea level.

Townscape / Cityscape

The general appearance of a built-up area, for example a street a town or city.

Town Centre Mall

A purpose-built shopping centres incorporating many individual shop units usually concentrating on comparison goods and sometimes leisure, residential and other uses.

Town Centre Management

A forum of traders, businesses and local authorities to agree and undertake co-ordinated management and care the retail area, promote trade and funding improvements.

Town Centre Strategy

Action plans to sustain and encourage the growth of services and amenities in a town centre through a partnership of the local authority and various organisations and people.

Town Centre Uses

A diverse range of town centre uses including, retail, social, leisure and cultural, housing, employment and other uses.

Town Centres

Includes a range of different-sized centres, including market and country towns, traditional suburban centres, and quite often, the principal centre(s) in a local authority's area.

Trade Parks

An out-of-centre mixed-use area of larger retail and light industrial units selling bulky goods.

Traffic Impact Assessment (TIA)

An assessment of the effects upon the surrounding area by traffic as a result of a development, such as increased traffic flows that may require highway improvements.

Tranquil Areas

Areas sufficiently remote from the visual or audible intrusion of development or traffic to be considered unspoilt by urban influences.

Transitional Arrangements

Generally used to describe arrangements that are put in place to manage the change from one system of regulations or procedures to another. More recently used to describe government regulations outlining the process of preparing development plans begun before, and to be completed after, the Planning and Compulsory Purchase Act 2004. It includes existing "saved" unitary, structure and local plans until new Local Development Documents are adopted.

Transport Assessment (TA)

An assessment of the availability of, and levels of access to, all forms of transportation.

Travel Demand Management

Planning the travel impacts of existing and new developments to minimise travel needs and provide travel choices for example by efficient car usage (including car sharing), bicycles, and walking and public transport.

Travel Generators

Areas of land use (or developments) that generate travel demands including places of work, schools and colleges, shops and retail parks, hospitals and leisure facilities.

Travel Plan (sometimes called a 'green travel' or 'commuter' plan)

A travel plan aims to promote sustainable travel choices (for example, cycling) as an alternative to single occupancy car journeys that may impact negatively on the environment, congestion and road safety. Travel plans can be required when granting planning permission for new developments.

Tree Preservation Order (TPO)

A mechanism for securing the preservation of single or groups of trees of acknowledged amenity value. A tree subject to a  tree preservation order may not normally be topped, lopped or felled without the consent of the local planning authority.

Turnover

Amount of sales per unit area of retail floorspace.