Smart Parking Linked to Transit: Lessons Learned from the San Francisco Bay Area Field Test 08/02/2007
Pennsylvania Turnpike Commission's Advanced Traveler Information System (ATIS) Phase III Project 04/02/2006
Pennsylvania Turnpike Commission's Advanced Traveler Information System (ATIS) Phase III Project 04/02/2006
Travel Time Messaging on Dynamic Message Signs – Chicago, IL; Houston, TX, Nashville, TN, and Portland, OR 05/30/2005
America's Travel Information Number: Implementation and Operational Guidelines for 511 Services Version 3.0 09/02/2005