As more than a million people in the D.C. area leave town for Thanksgiving, there are a few things travelers should keep in mind.

It is no secret that traffic in the D.C. area is a headache, especially during rush hour. Now, add more people and cars to that vision. No fun, right?

According to AAA Mid-Atlantic, more 1.2 million people are going away for Thanksgiving. Travel times will be twice as long. With 20 percent of the area's population getting out of here, this will be the highest volume of travelers seen in years.

With so many people hitting the roads, rails and skies to get to their loved ones, there is something people often forget: travel etiquette.

WUSA9 spoke with some people in the area to find out what really bugs them when they travel. The list is a long one.

"People won't let you in and they've got to keep a tight squeeze on you," said Barry Howard, who described how frustrating aggressive drivers can be. "If people would just give, traffic would move quickly and be much less stressful."

"People who don't use their blinkers on the road is really an ultimate disrespect for people who drive," Ayesha Gaston said. "You never know when people are going to turn and you don't want to run into the back of them," Ayesha Gaston said.

When it comes to plane rides, Tonette Ngassa has not had much luck. People have invaded her personal space with their feet. Howard has had passengers on a train ride fall asleep on him. Yikes.

Traveling does not have to be this painful.

According to John Townsend, a spokesperson for AAA Mid-Atlantic, drivers should increase their following distance, drive defensively and avoid distractions as much as possible.

When it comes to train rides, trips could run smoother if passengers free up space, have tickets ready and help people who seem lost or confused, according to a list of eight tips by Travel + Leisure. See the list here.

Earlier this year, Business Insider gave flight attendants a chance to say 25 things they wish they could tell passengers. A few of those include: keeping feet off walls and seats, not touching them to get their attention and listening to their safety presentation. You can see the full list here.