Social Planning v-1 0910

Social Planning Analysis of Demographic Characteristics and Trends

Population  

Sources of Population data: - Census of Population (every 10 years) - Vital registration system ( Local Civil Registry ) - National Statistics Office - Local Government Unit counts -

Population 

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Population size ( population level ) – Total number of members of a population. Population composition (or population structure ) – characteristics of a population for a particular period, e.g. age – sex composition. Population growth – a change in population size over two points in time as a result of births, deaths, in- migration and out-migration. Population distribution – spatial distribution or location of the members of a population.

Population Structure / Composition 

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Median Age – the age that divides a population into equal halves. Sex Ratio – the ration between the total number of men and the total number of women. (Total no. of men / total no. of women ) 100

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Needs of particular age groups 

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Health care – important for individuals below 15 years old, women of childbearing ages ( 15- 49 ), and the elderly. Education – demand for this service is highest from age 5 – 20, then declines thereafter. Food – demand is highest among young age groups, especially teenagers. Employment – demand is highest among the working age population. Housing – demand peaks at ages when people start living independently or start their own families.

Population Size and Growth 

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Sources of Population change:  Fertility  Mortality  Migration

Components of Population Change  

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Fertility – the number one determinant of population growth. Act of child bearing Mortality - is the condition of being mortal, or susceptible to death. Migration – permanent change of residence that requires crossing an administrative boundary from place of origin to place of destination.

Components of Population Change 

Population Density  Gross Population density  = no. of persons / unit of land area ( hectare or sq. km. ) - The gross population density is crude since not all lands in municipality are liveable. - Net population density  = no. of persons / unit of alienable and disposable land

Urbanization in the Philippines 

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Urbanization – the process by which an increasing proportion of the population lives in urban areas (NSO definition ) 1970 Philippine Definition of an Urban Area 1.In their entirety, all cities and municipalities which have a population density of a least 1,000 persons per sq. km. 2.Poblaciones or central districts of municipalities and cities which have a population density of at least 500 persons / sq. km.

Urbanization in the Philippines 

3. Poblaciones or central districts, regardless of population size which have the following characteristics:  3.1 Street patterns, that is, network of streets in either parallel or right angle orientation.  3.2 at least 6 establishments, either commercial, manufacturing, recreational and or personal services; 

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Urbanization in the Philippines 

3.3 at least three of the following:  - a town hall, church or chapel with religious services t least once a month.  - a public place, park or cemetery  - a market place or building where trading activities are carried on at least once a week.  - a public building like a school, hospital, or health center or library 

Urbanization in the Philippines 

4. Barangays, having at least 1,000 inhabitants, which meet the conditions set forth in 3 above and in which the occupation of the inhabitants is predominantly nonfarming / fishing.

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Sources of Urban Growth 

1. Natural increase 2. Net migration ( internal and international ) 3. Reclassification of previously rural to urban 

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areas.

REFERENCE: 

Planning Analysis and Techniques, Part 1 Analysis of Demographic Characteristics and Trends by Prof. Carmeli Marie Chaves, UP School of Urban and Regional Planning,