Congestion Buster is an app that runs in the background on your iPhone and warns you off congestion problems and their direction relative to where you are driving right now.
Connect the app to your car system through Bluetooth, and if the car supports OpenXC then the app will talk to you through the car, to let you know of any congestion issues that are occuring as you drive.
Because Congestion Buster is a background app, it will work even if you have a GPS or turn by turn navigation app in the foreground of your phone.
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