Yellow cabs have a four-digit medallion number on their roofs and sides, as well as on tags in the backseat. That number ...

Discover how Zurich, Switzerland, is transforming urban safety with the world's first tram airbags. This video offers an ...

The Tesla Cybercab autonomous vehicle is coming to American roads. What does it mean for drivers and ride-hailers?

Garlanded by trails, cactus forests and streamside pools, Sabino Canyon is Tucsonans’ favorite outdoor getaway, and reader Philip Bentley has an idea for experiencing it that requires timing, a good ...

We've narrowed down the field, but the story is not yet truly complete. You can step into the role of literary critic. Dive ...