Local public transportation including buses, trollies and trains, is available only in major cities, and then it is not comprehensive or necessarily traveler friendly. Operating hours differ from city to city, but in general services run from about 6am to 10pm. Basic fares average between $1.25 and $2.
Austin Buses can be handy for getting around downtown and to S Congress Ave; the light rail primarily heads out of town.
Dallas Light rail system connects several downtown stops with outlying suburbs; McKinney Ave Trolley great for traveling between Uptown and downtown. Weekdays, Trinity Express trains connect Dallas with Fort Worth.
Houston Has a limited light rail system, good for connecting from downtown to museums, but not for going further; buses are not very useful here.
San Antonio Four 'street car' (bus-like trolley) routes cater to city visitors, connecting all major downtown sights (Alamo, Market Square, HemisFair Park, etc)
Hitchhiking is never entirely safe in any country in the world, and we don't recommend it. Travelers who decide to hitchhike should understand that they are taking a small but serious risk. You may not be able to identify the local rapist, murderer, thief – or even a driver who has just had too much to drink – before you get into the vehicle. And in Texas, the chances are hitchhikers won't get picked up anyway – odds of catching a lift from someone here are next to nothing.
People who do choose to hitchhike will be safer if they travel in pairs and let someone know where they are planning to go.
Universities often have ride-sharing programs, as well as bulletin boards that advertise ride-sharing possibilities, especially at the ends of semesters and during school holidays.