Page 3		Note For further discussion of the region’s historical development patterns, refer to Geography and Urban Evolution of the San Francisco Bay Area, Vance, 1964.
4		Identification of developed land and existing land use is based on Existing Land Use in 1995: Data for Bay Area Counties and Cities, ABAG, 1996.
6		The map showing land designated for development, like many of the maps in this report, is plotted using census tract boundaries. The map indicates the average value for each tract. However, there may be significant variations from area to area within a tract—particularly if the tract covers a large area.
7-8		The light gray areas shown on the transportation maps are approximations of urbanized areas in 2020 based on projected population and employment.
10		Average rents are based on quarterly surveys of apartment buildings having 100 or more units conducted by RealFacts and reported by the Real Estate Research Council of Northern California.
10-37		Building permit data is from the Construction Industry Research Board and is plotted by city. Median home sales prices are from the California Association of Realtors and are also plotted by city. Prices reflect sales of new and existing single-family homes and condos during the month of July 1997. In a few cities, where the number of sales was low, the data was supplemented with data from other months or other sources.
38		Data on inter-county commutes is from the U.S. Bureau of Economic Analysis based on decennial censuses.
38-39		Estimates of jobs and housing units in 1995 and 1997 were made by ABAG using data from the California Employment Development Department and the California Department of Finance. Hous- ing units is the total number of units on the ground. The number of occupied units may be slightly less or substantially less than this number, depending on vacancy rates.
39		Home payments as percentages of income were calculated by ABAG using data from the California Association of Realtors (see maps on pages 14, 20, 30, and 36) and the U.S. Census Bureau (County Business Patterns by Zip Code).
40		For a detailed examination of existing freeway congestion, refer to Highway Congestion Monitoring Report–1996, California Department of Transportation District 4, 1997. For future projections, refer to Draft Supplemental Environmental Impact Report for the 1996 Regional Transportation Plan Update, Metropolitan Transportation Commission, 1996.
40-41 .		The transit studies cited are Ridership Impacts of Transit-Focused Development in California, Robert Cervero, University of California Transportation Center, 1993 and “Transit-Based Housing in the San Francisco Bay Area: Market Profiles and Rent Premiums,” Robert Cervero, Transportation Quarterly, Summer 1996. Estimates of the number of jobs and households near transit stations were prepared by ABAG with assistance from the Bay Area Council. Only existing BART, CalTrain, MUNI, and Santa Clara County Light Rail stations and ferry terminals were considered.

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