A MARTA train passes over the mural at the corner of Dekalb Ave. and Arizona Ave. on Thursday, April 17, 2014. Photo by: Photo: Jonathan Phillips

This story was updated on May 29. 

Atlanta’s mass transit system is adding train cars to its north and south lines.

MARTA announced on Monday, May 26, that it is extending trains on its Red and Gold lines from four to six cars during regular weekday service.

“Over the next few weeks, MARTA will be evaluating the appropriate balance of train lengths,” the press release from MARTA says.

The latest announcement is one of several recent MARTA initiatives to boost ridership by improving service. The transit agency also recently announced there will be shorter wait times for trains during the week. Those wait times will not be affected by adding cars to the trains, MARTA says.

“The previously announced enhanced service times of five-minute waits on the trunk (before the lines split) and 10-minute waits on the branches will remain the same,” the press release from MARTA says. “In order to minimize crowding, customers are being asked to also board the trains in the middle of the platform, not just at the ends.”

Decaturish.com asked MARTA if it also intends to add cars, or has added cars, back to the east west lines. The agency in December confirmed it had shortened its blue line train from eight cars to six cars due to lower ridership.

MARTA spokesman Lyle Harris said, “”MARTA is closely monitoring ridership trends, on-time performance, customer comments and other operational benchmarks on our entire rail system. Based on those factors, we will continue to run six-car trains on the Blue and Green lines until further notice.”