This could be a reference to the Bay Area Rapid Transit (BART), which spans the Bay Area of northern California.
train | Wagon Train | The Great Train Robbery | Soul Train | Train | Train (band) | Strangers on a Train | express train | The First Great Train Robbery | MARC Train | Last Train to Clarksville | Zion Train | Terror Train | Strangers on a Train (film) | Soul Train Music Awards | Slow Train | Microsoft Train Simulator | Kristina Train | How to Train Your Dragon | Brain Age: Train Your Brain in Minutes a Day! | The Plane Train | The Mystery of the Blue Train | The Great Train Robbery (film) | The Great Train Robbery (1903 film) | O-Train | How to Train Your Dragon (film) | Express train | wagon train | Train Protection & Warning System | The Day We Caught the Train |