In March, the Chicago Transit Authority (CTA) will implement the largest expansion of the Bus Tracker Website, with the addition of 24 routes.

Customers will have access to real-time service information for a total of 110 of CTA’s 153 bus routes — nearly 72 percent.

CTA Bus Tracker is a Web-based program that uses global positioning system (GPS) technology to provide customers with the locations and estimated arrival times of buses operating along activated bus routes.

The dedicated CTA Bus Tracker Website, www.ctabustracker.com, provides customers with a route map, where icons indicate the location and direction of buses currently in service on up to five routes; an alarm feature that alerts customers when a bus is approaching their selected bus stop; and the estimated arrival times at bus stops.