CHELMSFORD — On a Tuesday afternoon, cars, trucks and RVs crowd the rest stops on both sides of Interstate 495. Many are out-of-staters passing through on longer journeys, personal and professional.

The holiday season has arrived, and with it comes holiday travel. Some of the worst traffic conditions of the year fall around specific holidays, as family members and friends hit the road en route to ...

Going to be on the road for a while during the holidays? Here's where you are allowed to sleep in your car and where you are not.