Gas prices topping $4 a gallon. Freeways that have become parking lots — if you can get to them through surface-street traffic jams caused by fast growth, urban sprawl, and inadequate road planning. Transportation planning in Texas in general seems to have turned into a careening Mack truck that’s just as liable to plow into a city as help it. New highways are needed to get more and more people to work and get NAFTA traffic from the Rio Grande to the Red River, but the state says it doesn’t have the money to build the roads and bridges and...