Maps is new to OS X Mavericks but shares a lot of the same DNA as the iOS Maps app. That includes being able to obtain real time traffic information so you know what to expect once you're on the road. It can also help you decide what route to take. Here's how:
That's all there is to it. Maps in Mavericks will now show you traffic information until you go to view again and tell it not to. It's useful information to take a look at before even selecting a route. Also, don't forget you can send directions right to your iPhone or iPad from your Mac as well!