Appendix A: Data Sources

PHYSICAL FORM

Growth Patterns: Comparison of Population Growth in Plan Designated Centers and Non-Center Areas, by County: DVRPC calculations using 1997 U.S. Census population estimates.

Land Development: Developed Land v. Population: 1995 U.S. Census population estimates, DVRPC 1995 Land Use Information Data.

Farmland Preservation: Changes in Acres of Agricultural Land: DVRPC 1995 Land Use Information Data, Pennsylvania and New Jersey Departments of Agriculture.

Parks and Recreational Open Space: Actual 1999 Acres versus 2025 Needs: DVRPC Data, 1999; Guiding Regional Growth, DIRECTION 2020 Report #23, 1995.

Commercial Land Use: Office Occupancy Rates: County Data - Black's Guide/Teleres, Black's Guide (Philadelphia & Suburbs, Southern New Jersey, Delaware), 1997, Center City Philadelphia Data - Jackson-Cross Oncor International.

TRAFFIC CONGESTION

Auto Usage: DVRPC Traffic: DVRPC, Highway Traffic Trends in the Delaware Valley Region 1960 to 1995, February 1997.

Public Transit Usage: Number of Public Transit Passengers (millions): NJ Transit, 1999; PATCO, Operating Statistics, 1999; SEPTA, Ridership & Statistics, 1999.

Vehicles: Vehicle Growth versus Population Growth: DVRPC; U.S. Census, County Population Estimates, 1995.

ENVIRONMENT

Waste Generation: Pounds Per Person Per Day: New Jersey Department of Environmental Protection, 1997; Pennsylvania Department of Environmental Protection, Recycling Works in Pennsylvania (1996-1997 Annual Report, Act 101 of 1988), 1997

Recycling: Percent of Solid Waste Recycled: New Jersey Department of Environmental Protection, 1997; Pennsylvania Department of Environmental Protection, Recycling Works in Pennsylvania (1996-1997 Annual Report, Act 101 of 1988), 1997

Water Quality: Dissolved Oxygen in the Delaware River: Delaware River Basin Commission, 1990-1991 Delaware River and Bay Water Quality Assessment 305 (b) Report, 1992 and 1996-1997 Delaware River and Bay Water Quality Assessment 305 (b) Report, 1998; U.S. Environmental Protection Agency, STORET, 1998.

Water Withdrawal: Estimated Public Water Supply Withdrawals, 1990-1996: Delaware River Basin Commission Data, 1998.

Energy Consumption: State Per Capita Usage, 1990-1997 (million BTUs): U.S. Department of Energy, State Energy Data Report, 1997

AIR QUALITY

Ozone Pollution: Number of Exceedances in the DVRPC Region of the National Ambient Air Quality Standards (NAAQS) for Ozone: U.S. Environmental Protection Agency, Aerometric Information Retrieval System (AIRS), 1999.

Drive Alone: Percent of Home-to-Work Trips in Single Occupant Vehicles (SOV): DVRPC, Journey -to-Work Trends in the Delaware Valley Region, 1970-1990, DIRECTION 2020 Report #5, 1993.

ECONOMIC DEVELOPMENT

Employment Growth: Percent Change in Total Employment, 1990-1997: Bureau of Economic Analysis, August 1999.

Income Growth: Percent Change in Per Capita Personal Income, 1990-1997: Bureau of Economic Analysis, Regional Economic Information System (REIS), 1998.

Unemployment Rate: Percent of Persons in the Labor Force Seeking Jobs: Bureau of Labor Statistics, 1999.

FREIGHT MOVEMENT

Port: General and Bulk Cargo at the Port of Philadelphia and Camden: Port of Philadelphia and Camden, 1999.

Air: Tons of Air Cargo: Philadelphia International Airport, Division of Aviation Records, 1999.

Truck: Recorded Truck Movements: New Jersey Turnpike Authority, 1999; Pennsylvania Turnpike Commission, Traffic Comparison Reports, 1999; Delaware River Port Authority, Monthly Traffic and Revenue by Classification, 1999; Delaware River Joint Toll Bridge Commission, Comparative Statement of Traffic and Revenue, 1999; Burlington County Bridge Commission, Daily Reports, 1999.

MOBILITY

Safety: Total Automobile Crashes in the DVRPC Region: Pennsylvania Department of Transportation, Pennsylvania Crash Facts & Statistics, 1988, 1996 & 1999; New Jersey Department of Transportation, Summary of Motor Vehicle Traffic Accidents, 1988 & 1996.

Road Condition: Percent of Highway Miles Rated in Poor Condition: Pennsylvania Department of Transportation, OPI Frequency Distribution, 1990 & 1995; New Jersey Department of Transportation, SDI Distribution for DVRPC Counties, 1996 & 1998.

HOUSING

Housing Affordability: Increase in Housing Prices, the Consumer Price Index and Average Annual Wages: Consumer Price Index Data - Bureau of Labor Statistics, Philadelphia Regional Office CPI Announcement, April 1990, 1995 & 1997; Average Annual Wage Data - Bureau of Economic Analysis, Regional Economic Information System (REIS), 1997.

Housing Prices: Changes in Median Sales Prices, 1990-1998: Pennsylvania Sales Data - Bucks, Chester, Delaware and Montgomery County Planning Departments, 1999; The Philadelphia Inquirer, 1999; Philadelphia Sales Data - Realist, 1999; New Jersey Sales Data - Rowan College, The Management Institute at the School of Business Administration, 1999; The Philadelphia Inquirer, 1999: PMSA/U.S. Sales Data - National Association of Realtors, 1999.