IndyGo bus riders may notice some changes beginning Sunday.

The changes are intended to help with on-time performance for the Red Line and other fixed routes. Here are the details.

Red Line changes

Extension buses: Red Line passengers will no longer need to transfer to local route 90 buses to get to 96th Street or Greenwood. Instead, some of the Red Line buses will keep going after stopping at the final Red Line stations at 66th Street and College to the north and the University of Indianapolis to the south.

Passengers should look at the destination signs on the front of the bus to make sure they are getting on the correct bus. Southern extension buses will travel along Madison Avenue to Greenwood Park Mall as the final destination, and northern extension buses will keep traveling up College Avenue to end at 96th Street.

Recovery time: As drivers and dispatchers continue to eliminate bus bunching and irregular arrival times, they'll add time at both ends of the route, said Lauren Day, IndyGo director of public relations.

"By adding recovery time it gets them back on schedule at both ends," she said. "We're constantly trying to refine this and get towards the goal of 10 to 12 minutes on weekdays, and 15 to 17 minutes on weekends."

Day added that IndyGo also is adding five minutes of running time between 38th Street and Downtown in both directions to help with bunching.

Currently the Red Line is scheduled to run every 10 to 20 minutes on the weekday during peak hours, and every 15 to 30 minutes on the weekend. The longer intervals are generally during the evening hours.

Red Line issues:Here's how IndyGo is addressing the problems

IndyGo fixed route changes

Local routes 8, 10, 21 and 87 will no longer stop at Washington Square Mall on the east side. Day said mall owners requested that IndyGo buses no longer stop in front of the shopping center.

Routes 5, 6 and 10 will see extended weekend hours. On route 3, the stop at Michigan Plaza will now be called Michigan and Holt, and on route 30, the stop at Larue Carter Memorial Hospital will now be called Cold Spring Road/30th.

Contact IndyStar reporter Kellie Hwang at 317-444-6032 or kellie.hwang@indystar.com. Follow her on Twitter: @KellieHwang.