Here is when and where Memorial Day traffic will be the worst in Massachusetts, according to reports from MassDOT and AAA.

The Memorial Day travel rush is on. DALLAS (AP) — People began loading up their cars and jumping on planes across the U.S. on Thursday as the long Memorial Day weekend kicked off. Even as politics and the nation's aging air traffic infrastructure rattle the U.S. travel industry, Americans were expected to get away in record numbers.

AAA expects 45.1 million people to travel for the long weekend, and Florida is a top destination for out-of-staters. Officials said the roads will be busy.