There are plenty of unknowns in public transport. Will the bus get here on time? Will I get stuck in a huge traffic jam? There are certain things you just have no control over.

But Google Maps has added a new feature that will take just a little bit of that uncertainty out of the equation for those of you who take public transport on a regular basis.

The new feature added to the Google Maps app particularly comes in handy if you tend to doze off or daydream and miss your stops. The feature also reminds you to leave on time so you never miss your ride. Here's how it works:

  1. Fire up Google Maps on your phone, and put in the address of your destination and tap Search.
  2. Tap the Directions button, and when the options open up, tap the public transit icon.
  3. Select the route you'll be taking and scroll down to the bottom of the screen.
  4. Under the section Add a Google Maps reminder you can toggle on two options: Remind you to leave on time and Remind you when it's time to transfer.

And that's it. When you have the feature turned on, Google Maps will send you a notification letting you know your stop is coming up -- whether you have to transfer to another train or bus, or if you're getting off at your final destination.

What are your favorite Google Maps features? Is there a feature on your wish list that Google hasn't added yet? Let us know all about it in the comments.