Sources
On the Move: Transportation and the American Story by Janet F. Davidson and Michael S. Sweeney
The Steamboat Era http://www.eslarp.uiuc.edu/ibex/archive/IDOT/idot11.htm
A Political And Constitutional Study of The Cumberland Road http://web.ebscohost.com/ehost/pdfviewer/pdfviewer?sid=5b5af584-45fa-4711-b30b-daa8faec877f%40sessionmgr110&vid=2&hid=123
The Transportation Revolution AP Study Notes
http://www.apstudynotes.org/us-history/topics/the-transportation-revolution/
The American Railroad Network during the Early 19th Century
http://web.ebscohost.com/ehost/pdfviewer/pdfviewer?sid=3db2d310-516e-4025-b2ed-75343a6d58e7%40sessionmgr13&vid=5&hid=123
The Transportation Revolution Revisited: Towards a New Mapping of America's Transportation Network in the 19th Century http://www.econ.yale.edu/seminars/echist/eh07/atact-071205.pdf
The Steamboat Era http://www.eslarp.uiuc.edu/ibex/archive/IDOT/idot11.htm
A Political And Constitutional Study of The Cumberland Road http://web.ebscohost.com/ehost/pdfviewer/pdfviewer?sid=5b5af584-45fa-4711-b30b-daa8faec877f%40sessionmgr110&vid=2&hid=123
The Transportation Revolution AP Study Notes
http://www.apstudynotes.org/us-history/topics/the-transportation-revolution/
The American Railroad Network during the Early 19th Century
http://web.ebscohost.com/ehost/pdfviewer/pdfviewer?sid=3db2d310-516e-4025-b2ed-75343a6d58e7%40sessionmgr13&vid=5&hid=123
The Transportation Revolution Revisited: Towards a New Mapping of America's Transportation Network in the 19th Century http://www.econ.yale.edu/seminars/echist/eh07/atact-071205.pdf