Traffic and Transportation
- Delaware River Port Authority - www.drpa.org
- Southeastern Pennsylvania Transportation Authority - www.septa.org
- AASHTO – The Voice of Transportation - http://www.transportation.org
- Bicycle Coalition of Greater Philadelphia - http://www.bicyclecoalition.org/
- Community Transportation Association of America - http://www.ctaa.org/
- Pennsylvania Department of Transportation - www.dot.state.pa.us
- PATCO - www.ridepatco.org
- CIty of Philadelphia Streets Department - www.phila.gov/streets
- Pennsylvania Highways - www.pahighways.com
- Delaware Valley Association of Rail Passengers - www.dvarp.org
- Surface Transportation Policy Partnership - http://www.transact.org/report.asp?id=202
- Smart Growth America - http://www.smartgrowthamerica.org/
- Transportation: Smart Growth America - http://www.smartgrowth.org/library/byissue.asp?iss=12&res=1024
- Center City Parking Policy Evaluation - http://www.philaplanning.org/plans/ccparking.html
- Recommended Planting List for Off-Street Parking - http://www.philaplanning.org/pubinfo/plantings.pdf
