Even though the Braves' second home in Atlanta, Turner Field, was only two decades old, the owners decided to make a deal with Cobb County, announcing their relocation in 2014. The new ballpark, SunTrust Park, was completed in plenty of time for the 2017 season, but some of the transportation infrastructure remained uncompleted by Opening Day. It is all part of a new high-rise retail/residential high-rise complex, aiming for the best of the urban and suburban lifestyles. The location was chosen based on where the greatest number of Braves fans live, on the north side of Atlanta.
The playing field is about 25 feet below ground level, like most other newer ballparks. The field dimensions are quite similar to those of predecessor, Turner Field, except that the outfield walls are straight with clear angles, whereas at Turner Field they were mostly one broad curve. Almost the entire upper deck is covered by a roof, except for the portions toward the end of the grandstand near the right and left field corners. The second deck is larger than in most other baseball stadiums, while the lower deck is smaller. There is much less foul territory compared to Turner Field, and the position of the grandstand resembles those of Marlins Park and PNC Park.
The Braves struggled for much of the year in their new home, but showed improvement toward the end, finishing in third place in the NL East Division. In December 2015 it was announced that, after the Braves leave, Turner Field will be converted into a football stadium, to be the new home of Georgia State University.
SOURCES: MLB.com, http://www.myajc.com/news/sports/baseball/outfield-dimensions-wall-heights-different-at-new-/nqgxs/
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