Chicago Transit Authority's (CTA) Bus Tracker lets you view estimated arrival times for selected CTA bus routes.

CTA’s Bus Tracker lets you view estimated arrival times for selected CTA bus routes.

Now, with the Bus Tracker Widget for Mac OS X, it’s easier than ever to know when the next bus will be arriving at your stop.

• View real-time arrival information for all 86 Bus Tracker routes.

• Display up to five predictions for each bus stop.

• Open multiple widget instances to track as many bus stops as you'd like.

• Optionally display bus numbers for each prediction.