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The American Housing Survey (AHS)〔(American Housing Survey site at HUD User )〕 is a statistical survey funded by the United States Department of Housing and Urban Development (HUD) and conducted by the U.S. Census Bureau. It is the largest regular national housing sample survey in the United States and contains information on the number and characteristics of U.S. housing units as well as the households that occupy those units. Beginning in 2007 both the national (AHS-N) and metropolitan (AHS-MS) surveys are conducted every odd-numbered year rather than the previous practice of sampling every odd-numbered year for AHS-N and even-numbered year for AHS-MS. The 2007 sample consisted of 55,000 national housing units and 7 metropolitan sampling areas (MSAs) with 3,000 units for a total sample size of 76,000 housing units.〔US Census Bureau. (Demographic surveys. ) Click on the Survey abstracts at the top of page; then see page 7 of PDF (4 of document).〕 In 2001, there were 119,117,000 housing units in the United States, with 106,261,000 occupied and 12,855,000 vacant.〔US Census Bureau. (AHS FAQ )〕 The metropolitan areas are revisited for an updated sample every six years. Since 1985, the survey data in both the national and metropolitan area samples are collected from the same homes each survey year; hence the AHS can track changes in these housing units over time. With each new national or metropolitan survey, new housing units are added to the sample to account for new construction since the last survey. ==Overview== The AHS contains a wide variety of information that can be used by professionals in many fields for planning, decision making, market research, or various kinds of program development. It provides data on apartments, single-family homes, mobile homes, vacant homes, family composition, income, housing and neighborhood quality, housing costs, equipment, fuels, size of housing unit, and recent movers. The AHS survey has two distinguishing features. Unlike most surveys, the primary focus is on the housing unit; the survey does gather extensive information on the people living in the housing units, but only to relate the people characteristics to the housing characteristics. The AHS uses a longitudinal sample, which means that the Census Bureau goes back to the same housing unit with each new survey. This longitudinal feature allows HUD and the Census Bureau to see how housing units and people served in those units change over time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「American Housing Survey」の詳細全文を読む スポンサード リンク
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