Metadata: BLI Model Housing/Employment Allocation

BLI Model Housing/Employment Allocation

Category Planning
Feature Dataset Name STAND-ALONE
Item Name bli_model_allocation_bps
Database Type SDE
Originator City of Portland
Bureau Bureau of Planning and Sustainability
Publication Date 09/22/2014
Abstract Allocation of Metro 2035 forecast for the City of Portland to a 250'X250' grid covering the City of Portland area. Forecast is allocated to cells based on development trends, employment densities, and underlying development capacity per the GIS-based buildable lands inventory (BLI) allocation and capacity models. Growth is allocated based on the current proposed comprehensive plan landuse designations and a proposed ("preferred") growth scenario that resulted from the Bureau of Planning and Sustainability's (BPS) 2012 Growth Scenario Analysis.

For more information, refer to the 2012 growth scenarios report: https://www.portlandoregon.gov/bps/article/449300

This report is in the process of being updated to include the new preferred scenario. Expected completion is early 2015.

BPS is also producing a technical report describing the GIS-based allocation model. Expected completion is December 2014. There is an existing report that describes the capacity calculations of the model and how underutilized residential and employment sites are identified: https://www.portlandoregon.gov/bps/article/408232

Information on development constraints and allocation methodology/assumptions will be added to the new technical report. In the interim, the main assumptions of the model, a series of graphics illustration the methodology and workflow, and a detailed description of the input development constraints are attached to this metadata info.
Purpose For analyzing and mapping spatial distribution of forecasted housing/employment growth under the current comprehensive plan proposal
Supplemental Information Full documentation of the model, the model inputs, and the model outputs is in development. Please contact the Bureau of Planning and Sustainability for more information
Last Dataset Update 01/07/2019 15:45
Last Source Update 01/07/2019 01:19
Maintenance/Update Frequency Regular updates
Extent City of Portland
Data Type Vector
Shape Type Polygon
Feature Count 68703
Horizontal Position Accuracy
Horizontal Position Accuracy Link
Progress
North Bounding Coordinate 732409.286954718
South Bounding Coordinate 650409.286954718
East Bounding Coordinate 7697006.05773558
West Bounding Coordinate 7604006.05773558
Theme Keyword(s) buildable lands, allocation, capacity, forecast, planning
Theme Keyword Thesaurus
Place Keyword(s) Portland, Multnomah County, Washington County, Clackamas County, Oregon
Place Keyword Thesaurus Portland, Multnomah County, Washington County, Clackamas County, Oregon
Access Constraints Available for Public Use
Use Constraints These data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is".

The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy.
Source Dataset Type File Geodatabase
Output Geodatabase EGH_PUBLIC.GDB
Distribution Grid: State plane coordinate system 1983(91).
Units: International feet
Datum: North American Datum of 1983/1991 (HPGN)
Liability: The information in this file was derived from digital databases on the City of Portland GIS. Care was taken in the creation of this file. The City cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied.
Format: Shapefile or File Geodatabase Feature Class - Data will be provided via City of Portland FTP Site.
Online Resource: http://portlandmaps.com/opendata
Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - http://portlandmaps.com/opendata. Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group - maps@portlandoregon.gov
Transfer Size: varies
SPCS Zone Identifier: 5076
Contact(s)
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Kevin Martin
503 823-7710
503 823-7800
kevin.martin@portlandoregon.gov
1900 SW 4th Avenue, Suite #7100
Portland, OR 97201

City of Portland - BPS
503 823-7700
503 823-7800
bps@portlandoregon.gov
File(s)
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Documents
BLI_GIS_Model_Charts_130903.pdf 69.35Kb Series of graphics describing the BLI model methodology/workflow X
table1_bli_constraints_DRAFT_140304.pdf 114.53Kb Draft description of the BLI model development constraints and capacity deductions X
BLI_Input_Assumptions_All_141008.xlsx 72.17Kb Spreadsheet containing all assumptions and parameters used by the BLI GIS capacity and allocation models X
Lineage
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Attribute Tables & Domains

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bli_model_allocation_bps
Table Description
Table Jurisdiction
Column Sort Column Name Column Alias Column Type Column Size Domain Value(s) Column Description
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1 Grid_ID Grid ID Integer 4
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Unique numeric ID for each 250X250' grid cell polygon
1 Population_1990 1990 Population (Census) Numeric 8
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1990 population of the grid cell (from US census blocks, weighted by grid area within the block)
1 Population_2000 2000 Population (Census) Numeric 8
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2000 population of the grid cell (from US census blocks, weighted by grid area within the block)
1 Population_2010 2010 Population (Census) Numeric 4
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2010 population of the grid cell (from US census blocks, weighted by grid area within the block)
1 Total_Units_1990 1990 Units (Census) Numeric 4
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Total 1990 residential vacant/occupied units (households) in the grid cell (from US census blocks, weighted by grid area within the block)
1 Total_Units_2000 2000 Units (Census) Numeric 4
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Total 2000 residential vacant/occupied units (households) in the grid cell (from US census blocks, weighted by grid area within the block)
1 Total_Units_2010 2010 Units (Census) Numeric 4
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Total 2010 residential vacant/occupied units (households) in the grid cell (from US census blocks, weighted by grid area within the block)
1 Total_Existing_Units Total Existing Units Numeric 4
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Total existing SFR/ADU/MFR residential units in the grid cell to date ([Total_Units_2010] + [Units_Since_2010])
1 Total_Jobs_2010_QCEW 2010 Jobs (QCEW) Numeric 8
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Total number of employees in the grid cell (2010 State employment data, average annual employment)
1 Jobs_Since_2010_QCEW Jobs 2010-2013 (QCEW) Numeric 8
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Jobs added in 2011 and 2012 (2012 State employment data, average annual employment)
1 Total_Jobs Total Existing Jobs (QCEW) Numeric 4
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Total jobs in the grid cell ([Total_Jobs_2010_QCEW] + [Jobs_Since_2010_QCEW])
1 Alloc_Areas_Prop_H Housing Allocation Areas (Proposed) String 50
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Proposed scenario housing allocation areas. Used by the model to focus housing allocation in specific areas like the Central City, town centers, etc. (refer to attached model assumptions for more information)
1 Alloc_Areas_Prop_E Employment Allocation Areas (Proposed) String 50
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Proposed scenario employment allocation areas. Used by the model to focus housing allocation in specific areas like the industrial land, commerical centers, etc. (refer to attached model assumptions for more information)
1 ADU_Alloc ADU Allocation Numeric 8
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Allocation of new accessory dwelling units to the grid cell based on forecast growth through 2035
1 SFR_Total_Capacity SFR Total Capacity Numeric 8
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Underutilized single family residential (SFR) unit capacity in the cell
1 SFR_Const_Deduct SFR Constraint Deduction Numeric 8
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SFR development constraints capacity deduction (see attached file for an explanation of constraints and deductions)
1 SFR_Net_Capacity SFR Net Constrained Capacity Numeric 8
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Net underutilized SFR unit capacity after development constraints are deducted
1 MFR_Total_Capacity MFR Total Capacity Numeric 8
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Underutilized multi family residential (MFR) unit capacity in the cell
1 MFR_Const_Deduct MFR Constraint Deduction Numeric 8
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MFR development constraints capacity deduction (see attached file for an explanation of constraints and deductions)
1 MFR_Net_Capacity MFR Net Constrained Capacity Numeric 8
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Net underutilized MFR unit capacity after development constraints are deducted
1 Employ_Total_Capacity Total Jobs Capacity Numeric 8
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Underutilized employment capacity in the cell, expressed as number of jobs
1 Employ_Const_Deduct Jobs Constraint Deduction Numeric 8
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Employment development constraints capacity deduction, expressed as number of jobs (see attached file for an explanation of constraints and deductions)
1 Employ_Net_Capacity Net Constrained Jobs Capacity Numeric 8
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Net underutilized jobs capacity after development constraints are deducted
1 SFR_Alloc_Prop Final SFR Allocation (Proposed) Numeric 8
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New single family residential (SFR) units allocated to the grid cell by the model based on forecast growth through 2035 (Proposed Scenario)
1 MFR_Alloc_Prop Final MFR Allocation (Proposed) Numeric 8
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New single family residential (SFR) units allocated to the grid cell by the model based on forecast growth through 2035 (Proposed Scenario)
1 Employ_Alloc_Prop Final Employ Allocation (Proposed) Numeric 8
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New jobs allocated to the grid cell by the model based on forecast growth through 2035 (Proposed Scenario)
1 Total_Alloc_Prop Total Allocation (Proposed) Numeric 8
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Total residential (SFR/ADU/MFR) allocation to the grid cell based on forecast growth through 2035 ([ADU_Alloc + [SFR_Alloc_Prop] + [MFR_Alloc_Prop]) (Proposed Scenario)
1 Forecast_Units_Prop Forecast Units (Proposed) Numeric 8
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Total forecast residential units in the grid cell in 2035 ([Total_Existing_Units] + [Total_Alloc_Prop]) (Proposed Scenario)
1 Forecast_Jobs_Prop Forecast Jobs (Proposed) Numeric 8
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Total forecast employment (jobs) in the grid cell in 2035 ([Total_Jobs] + [Employ_Alloc_Prop]) (Proposed Scenario)
1 Type_A_SFR_Units_Prop Type A SFR Units (Proposed) Numeric 8
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Net allocation of detached single family residential (SFR) housing type "A" units (Proposed Scenario)
1 Type_B_SFR_Units_Prop Type B SFR Units (Proposed) Numeric 8
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Net allocation of "small-lot" SFR housing type "B" units (Proposed Scenario)
1 Type_C_SFR_Units_Prop Type C SFR Units (Proposed) Numeric 8
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Net allocation of attached, "medium-density" SFR housing type "C" units (Proposed Scenario)
1 Type_D_SFR_Units_Prop Type D SFR Units (Proposed) Numeric 8
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Net allocation of attached, "high-density" SFR housing type "D" units (Proposed Scenario)
1 Type_E_MFR_Units_Prop Type E MFR Units (Proposed) Numeric 8
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Net allocation of "plex" multi family residential (MFR) housing type "E" units (Proposed Scenario)
1 Type_F_MFR_Units_Prop Type F MFR Units (Proposed) Numeric 8
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Net allocation of "corridor apartment" MFR housing type "F" units (Proposed Scenario)
1 Type_G_MFR_Units_Prop Type G MFR Units (Proposed) Numeric 8
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Net allocation of "neighborhood mixed-use" MFR housing type "G" units (Proposed Scenario)
1 Type_H_MFR_Units_Prop Type H MFR Units (Proposed) Numeric 8
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Net allocation of "single room occupancy" MFR housing type "H" units (Proposed Scenario)
1 Type_I_MFR_Units_Prop Type I MFR Units (Proposed) Numeric 8
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Net allocation of "mid-rise mixed use, small units" MFR housing type "I" units (Proposed Scenario)
1 Type_J_MFR_Units_Prop Type J MFR Units (Proposed) Numeric 8
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Net allocation of "mid-rise mixed use, large units" MFR housing type "J" units (Proposed Scenario)
1 Type_K_MFR_Units_Prop Type K MFR Units (Proposed) Numeric 8
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Net allocation of "high-rise tower" MFR housing type "K" units (Proposed Scenario)
1 Existing_SFR_Units Existing SFR Units Numeric 8
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Existing SFR units in the grid cell
1 Existing_MFR_Units Existing MFR Units Numeric 8
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Existing MFR units in the grid cell
1 Forecast_SFR_Units_Prop Forecast SFR Units (Proposed) Numeric 8
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Total forecast SFR units in the grid cell in 2035 ([Total_SFR_Units] + [SFR_Alloc_Prop]) (Proposed Scenario)
1 Forecast_MFR_Units_Prop Forecast MFR Units (Proposed) Numeric 8
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Total forecast MFR units in the grid cell in 2035 ([Total_MFR_Units] + [MFR_Alloc_Prop]) (Proposed Scenario)