Superdistricts with Populations, San Francisco Bay Area, California, 1990

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Abstract/Contents

Abstract: This polygon shapefile contains superdistrict boundaries and population statistics created by the Metropolitan Transportation Comission (MTC) using Census 1990 data. Superdistricts are used in the analysis of sub-county level demographic and travel forecasts. MTC maintains a set of regional travel analysis zones for use in MTC planning studies. These travel analysis zones (TAZs) are typically small area neighborhoods or communities that serve as the smallest geographic basis for travel demand model forecasting systems. From time to time, MTC updates the regional travel analysis zone system to reflect changes in decennial census geography, changes in computing capability, and forecasting needs for particular corridor studies. In addition to regional TAZs and counties, MTC supports an intermediate geographic scale, "superdistricts," for analysis and reporting purposes. There are 34 superdistricts in the nine-county Bay Area. This layer is part of the Bay Area Metropolitan Transportation Commission (MTC) GIS Maps and Data collection.
Purpose: This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.

Type of resource	cartographic, software, multimedia
Form	Shapefile
Extent	0.604
Place	Oakland, California, US
Publisher	California. Metropolitan Transportation Commission
Date valid	1990
Publication date	2002
Language	English
Digital origin	born digital
Map data	Scale not given. ; Custom projection W 123°32ʹ--W 121°9ʹ47ʺ/N 38°51ʹ57ʺ--N 36°53ʹ21ʺW 123°31ʹ57ʺ--W 121°12ʹ26ʺ/N 38°51ʹ52ʺ--N 36°53ʹ39ʺ, Scale not given ; EPSG::4326

Creator	California. Metropolitan Transportation Commission

Subject	Population
Subject	Transportation demand management
Subject	San Francisco Bay Area (Calif.)
Subject	San Francisco (Calif.)
Subject	Contra Costa County (Calif.)
Subject	Napa County (Calif.)
Subject	San Mateo County (Calif.)
Subject	San Mateo County (Calif.)
Subject	Solano County (Calif.)
Subject	Sonoma County (Calif.)
Subject	Marin County (Calif.)
Subject	Alameda County (Calif.)
Subject	1990
Subject	Boundaries
Subject	Planning and Cadastral
Subject	Society
Genre	Geospatial data
Genre	Cartographic dataset

WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location	https://purl.stanford.edu/dp099sn0794

Use and reproduction: This item is in the public domain. There are no restrictions on use.
Copyright: This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation: California, Metropolitan Transportation Commission. (2002). Superdistricts with Populations, San Francisco Bay Area, California, 1990. MTC. Available at: http://purl.stanford.edu/dp099sn0794.

Metropolitan Transportation Commission GIS Maps & Data

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