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Transport Assessment
Data Available in Northern Ireland: General Data

Information on locations of population, and facilities such as schools, hospitals, etc. will be needed to calculate catchment areas, especially for housing developments. Information on land-use and facilities will also be useful when estimating trips that can be diverted from existing facilities to new developments.

Land information

The Land Registers of Northern Ireland (LRNI) Opens link in a new browser window is an Executive Agency within the Department of Finance and Personnel. The Agency provides land information and registration services.

Northern Ireland Statistics and Research Agency

The NI Statistics and Research Agency (NISRA Opens link in a new browser window) is Northern Ireland’s official statistics organisation. The Agency also has responsibility for the registration of births, marriages, adoptions and deaths in Northern Ireland. Their website contains information on a comprehensive range of official Northern Ireland statistics as well as information about the Census and the General Register Office.

The Northern Ireland Census 2001

In Northern Ireland the Census was carried out by the Northern Ireland Statistics and Research Agency. The Census is a count of all people and households in Northern Ireland. It provides essential statistical information, informing the planning and funding of public services, including health, education and transport. Results also support research and business. Information will be available from the Northern Ireland level down to small geographical areas.

Census Special Workplace Statistics (CSWS)

The 1991 and 2001 Censuses asked about people’s place and address of work, and mode used to travel to work.  Means of Travel to Work shows the mode of transport normally used for the longest part, by distance, of the journey to work. Data for a random stratified 10% sample of the 1991 Census was coded and this forms the CSWS. This data provides a useful source for analysing modal split according to distance, type of area and other characteristics, but would require much in-depth analysis by experts to provide useful information for developers carrying out a Transport Assessment.
CSWS provides information about persons in employment by their area of residence. The ‘resident population’ base is restricted to those who are employees or who are self-employed. It covers the full address of the workplace and how the longest part of the journey by distance of the person’s trip to work is made. Workplace address postcodes are used for the location. The distance to work has been calculated as a crow fly-related distance between the co-ordinates of the home and workplace.  This data can be useful for assessing the realism of predictions made about mode split and catchments (although for work journeys this is a limitation). Access to Census related information can be done through the Office of National Statistics Opens link in a new browser window.

Travel Survey for Northern Ireland (TSNI)

The Travel Survey for Northern Ireland is produced annually.  The methodology used in the survey is based on the National Travel Survey used in Great Britain.

Commercially held geo-coded data on facilities

Geo-coded retail and service datasets are available from a variety of companies. They may use existing databases of such information and ‘add value’ to them by undertaking further research, cleaning and checking data, classifying and summarising records, and geo-coding. MapInfo Opens link in a new browser window sells databases for various land uses including post offices, banking and finance, hotels etc, public houses, petrol stations, food retailers, clothing and footwear, newsagents, household goods stores, services and estate agents.  

Trip rates and travel behaviour

One of the methods to estimate the likely amount of traffic a new development might generate is to compare a development with similar existing developments  assuming that trip generation will be similar. For this purpose a number of trip databases have been compiled. It is envisaged that these databases will continue to have a similar role in the Transport Assessment process, though they will have to adapt to provide the information that will be useful for travel by all modes, and to provide stronger links between catchment areas and modal split.
The Travel Survey for Northern Ireland Opens link in a new browser window is also of use, as well as other sources of data on travel behaviour.

Visits to tourist attractions

The database of Visits to tourist attractions contains information on number of visitors to United Kingdom tourist attractions with more than 10,000 visitors in the year.  It includes a brief summary text, followed by many tables, showing the more successful sites by type of attraction. More detailed presentation of the survey information is contained in Sightseeing in the United Kingdom, Office for National Statistics Opens link in a new browser window.
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