The new train cars have four fewer seats than the ... 10 cars of BART's so-called Fleet of the Future will finally hit the tracks this month after getting the OK from state regulators.

In the footage, two freight trains smoothly navigate the tracks in a flexible "snake-like ... It operates 24 hours a day, with a train departing on average every four minutes.

The formation of a development company to build rail stations for a bullet train running from Dallas-to-Houston is the latest step in a decade-long effort to push the plan down the tracks.