The MBTA bus turned and wobbled and wheezed forward. Then it zoomed ahead and crossed onto a bridge. The driver had unwittingly gunned the accelerator, reaching 50 miles per hour. What seems like a T ...

TTC chair Adam Giambrone makes a right-hand turn and brings the virtual bus to a stop, only to find he has jumped the curb and is idling inches from a lamppost. Seated in the TTC’s new computerized ...