If you're heading out this Labor Day weekend expect company. According to Triple A's annual Labor Day survey more than 800,000 Americans will travel by automobile this holiday weekend.

That's a nearly 3% increase over last year as well as the highest estimate in the last four years.

In Massachusetts, they expect traffic to be very heavy. The MassDOT is encouraging motorists to plan ahead. On the Southcoast they say to expect things to be very busy near Cape Cod on Thursday and Friday Evening heading west, and Monday evening heading East.

In order to ensure that traffic moves smooth, the MassDOT is suspending all road and bridge work.