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UC/L See Urban Centre/Locality. Although every effort is made by census collectors to locate every dwelling and household within their allocated district, sometimes this is not possible. Some dwellings may not be identified. For example, in commercial areas flats above or behind shops may be difficult to find. Also, particularly where contact is not made at delivery, flats behind or attached to private dwellings may not be included in the Census. Analysis of the undercount in previous censuses has shown that people away from their usual residence on census night (for example, travelling, camping, staying in a non-private dwelling or visiting friends) are more likely to be missed than people at home on census night. See Labour Force Status/Status in Employment (LFSP). The Unit Record File (URF) is a sequence of records held on computer files. It holds coded data for all the person, family, household and dwelling characteristics in each Collection District as collected in the Census. It is the original source of all census products. It excludes records for persons listed as Temporarily Absent. See Dwelling. See Contributing Family Worker, Labour Force Status/Status in Employment (LFSP). See Child Under 15. A person who lives in a family household, but who is not related to any person in any of the families in the household, but who shares meals with a family. A boarder fits into this category. An urban centre is a population cluster of 1,000 or more people. A locality is a population cluster of between 200 to 999 people. People living in urban centres are classified as urban for statistical purposes while those in localities are classified as rural. Each urban centre and/or locality (UC/L) is bounded (i.e. a boundary for it is clearly defined) and composed of one or more whole collection districts (CDs). UC/Ls are defined for each census and are current for the date of the Census. The criteria for bounding UC/Ls are based on the Linge methodology. Usual Address information is used to code Usual Residence. The 1996 Census form contains three questions on Usual Residence. Question 7 asked where each person usually lived on census night, Question 8 asked where each person usually lived one year ago and Question 9 asked where each person usually lived five years ago.
The following variables are available:
(State is necessary to delimit SLA because the SLA code is not unique across Australia.) Note that SLA of Usual Residence one year ago was not collected in 1991. Usual residence data provide reliable, up-to-date information on the usually resident population of an area, and on the internal migration patterns at the Australia, State, Regional and Local Government levels. The data are also used by the ABS in calculations of the Estimated Resident Population (ERP). People who were enumerated on board vessels in or between Australian ports (or on long-distance trains, buses or aircraft) on census night, and who gave an address in Australia as their usual residence, are coded to the SLA containing that address. A small number of people who were on board vessels in or between Australian ports, or on long-distance trains, buses or aircraft, who indicated that they were usually resident at the address at which they are enumerated, are allocated a separate usual residence code describing them as Migratory. Most respondents who are enumerated at a place other than their usual residence provided sufficient information for a SLA code to be allocated for their usual residence. However, in some cases a code of 'State undefined' or 'Capital City undefined' must be allocated and in some cases no response is given. If the information given for usual residence on census night is inadequate for allocating a code, the SLA of a parent (if the person is under 15) or spouse (if the person is 15 or older) is allocated if a parent or spouse is present with SLA of Usual Residence on census night stated. In Non-Private Dwellings which are likely to contain non-permanent residents from other SLAs (including hotels, motels, hospitals) the SLA of Usual Residence is imputed where not stated, based on data from the 1991 Census. This is also done for people who are visitors in Private Dwellings. In all other cases of non-response the SLA of Usual Residence is assumed to be the SLA of Enumeration. If no code can be allocated for SLA of Usual Residence one or five years ago, a code of Not Stated is given. The only exceptions to this are where the person is 16 or younger (for usual residence one year ago) or 20 years or younger (for usual residence five years ago ) and there is a parent present with the appropriate SLA coded. The SLA code of the parent is then allocated to the person. Family variables are only derived for people counted at their usual residence. Temporarily absent persons are used to classify types of relationships and families existing in a household, but they are not used in the derivation of any other census characteristics or in other census output. Note that if all members of a family are absent from their usual residence, no family records are created for them. Thus, actual location counts of families and households are usual residence counts less counts of wholly absent families or households from their usual residence on census night. See also Census Counts, Migratory Collection Districts, Off-Shore Collection Districts, Place of Usual Residence, Temporarily Absent, Usual Residence, Visitors to a Household.
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