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SEMCOG Forecast Process. What is the SEMCOG Forecast? SEMCOG Forecast. A 30-year forecast of population by age, households by income and children, employment by sector, and land use change
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What is the SEMCOG Forecast? SEMCOG Forecast • A 30-year forecast of population by age, households by income and children, employment by sector, and land use change • Forecasts changes by individual land parcel, so output can be added up by any political or planning jurisdiction
How we Forecast SEMCOG Forecast • We collect data on person, household, and job characteristics from state and national surveys such as the U.S. Census • Add to that local data on the current and future development of land parcels • Add to that other data on transportation, crime, tax rates and other development drivers • And input this data into an urban simulation model named UrbanSim
Forecast Data Input SEMCOG Forecast Regional Control Totals • Land Parcel and Tax Assessor Data: • Property Address and Owner • Property Class and Property Status • Current Zoning • Value of the Land and Structures • Recent Sales Data • Number and Age of Buildings • Number of Housing Units • Building Occupancy • Building Size (Square Feet and Stories) Jobs Data (ES-202): Business Establishments Employment by Type Households Data (Census): Persons, Workers, Children, Age, Race, and Income Future Land Use plans, Crime rates, Environmental constraints, and Property Tax rates UrbanSim Model • Travel Data: • Travel Time between Areas • Accessibility to Transit and Jobs
No Structure 1939 or earlier 1940 - 1949 1950 - 1959 1960 - 1969 1970 - 1979 1980 - 1989 1990 - 1999 2000 - 2010 Year Built of Oldest Structure Macomb County
Urban Simulation Model SEMCOG Forecast • Simulates the interactions between land use, transportation, and public policy • It forecasts future household and business locations based on market preferences and available real estate • Can model different policy assumptions, such as changes in housing vacancy, land regulation, or travel patterns
How the Model Works SEMCOG Forecast • Regional Forecast Totals: • Population • Households • Employment • New and Moving: • Households • Businesses • Current Inventories: • Housing and Households • Buildings and Businesses • Land Development: • Prices Adjusted • New Houses • New Buildings
Solving Problems Local Government Decisions School enrollment has been up slightly over the last few years. Should we build a new elementary school?
Change in Population Ages 5 to 17 by School District Large loss (>2,000) Loss (501 to 2,000) Slight loss (0 to 500) Slight gain (1 to 500) Gain (501 to 2,500) School Age PopulationSoutheast Michigan School Districts, 2010-2020
Solving Problems Local Government Decision Since the long term forecast for school age children is a decline over the 2010 level, no, a new school building is not needed. School enrollment has been up slightly over the last few years. Should we build a new elementary school?
Solving Problems Local Government Decisions We have a grant to build a new community center. Should we build a sports recreation building or a senior center?
Population Growth by Age GroupSoutheast Michigan, 2010-2040 Source: SEMCOG 2040 Forecast
Solving Problems Local Government Decision Since the long term forecast is for the senior population to nearly double while all other age groups decline, we should build a senior center. We have a grant to build a new community center. Should we build a sports recreation building or a senior center?
Solving Problems SEMCOG Forecast • SEMCOG’s regional development forecast is designed to provide local elected officials the data needed to solve current planning issues • This is particularly important in a time of limited financial resources
Macomb County Totals SEMCOG Forecast Source: SEMCOG 2040 Forecast
Macomb County Trends SEMCOG Forecast Source: SEMCOG 2040 Forecast
Loss (101 to 800 HH) Little change (loss of 100 HH to gain of 100 HH) Gain (101 to 500 HH) Moderate gain (501 to 1,500 HH) Large gain (1,501 to 3,900 HH) Continued Household GrowthChange in Households, Macomb County, 2010-2020 Source: SEMCOG 2040 Forecast
Moderate loss (1,001 to 3,000 persons) Loss (0 to 1,000 persons) Little change (gain of 1 to 500 persons) Modest gain (501 to 2,000 persons) Moderate gain (2,001 to 4,000 persons) Large gain (4,001 to 10,500 persons) Smaller HouseholdsChange in Population, Macomb County, 2010-2020 Source: SEMCOG 2040 Forecast
Population Change by AgeMacomb County, 2010-2020 Source: SEMCOG 2040 Forecast
Household Change by Type Macomb County, 2010-2040 Households 65 or older 38% 23% Households under 65, without children 46% 36% Households under 65, with children 31% 26% Source: SEMCOG 2040 Forecast
Employment Gains Five Largest Job Sectors, Macomb County, 2010-2040 Source: SEMCOG 2040 Forecast
Loss (-129 to -1 jobs) Small gain (1 to 100 jobs) Moderate gain (101 to 500 jobs) Large gain (501 to 1,500 jobs) Very large gain (more than 1,500 jobs) Employment by Community Change in Employment, Macomb County, 2010-2020 Blocked for Confidentiality Source: SEMCOG 2040 Forecast
Local Review Process SEMCOG Forecast • Review draft community numbers • Get comments or additional information to SEMCOG staff by January 6, 2012 • Final community forecast will be complete and approved by March 2012 • Data and reports will be available on SEMCOG’s Web site shortly thereafter