There are some custom search engines that may assist you in your searches: Public Transit Agencies: http://www.google.com/coop/cse?cx=012995479145342077058%3Aipxox2lxkha University Transportation Center Search Engine: http://www.google.com/coop/cse?cx=010809592348763093458:3jsikrwi874 State DOT Search Engine: http://www.google.com/coop/cse?cx=006511338351663161139