▁expansion ▁via ▁met ro ▁or ▁comm uter ▁rail ▁further ▁south ▁into ▁Clay ton ▁County ▁have ▁been ▁discussed . ▁ ▁The ▁H arts field – Jack son ▁R ental ▁Car ▁Center , ▁which ▁opened ▁December ▁ 8 , ▁ 2 0 0 9 , ▁houses ▁all ▁ten ▁air port ▁r ental ▁ag encies ▁with ▁capacity ▁for ▁additional ▁companies . ▁The ▁complex ▁features ▁ 9 , 9 0 0 ▁par king ▁spaces ▁split ▁between ▁two ▁four - story ▁par king ▁de cks ▁that ▁together ▁cover ▁, ▁a ▁ ▁customer ▁service ▁center , ▁and ▁a ▁maintenance ▁center ▁featuring ▁ 1 4 0 ▁gas ▁p umps ▁and ▁ 3 0 ▁was h ▁b ays ▁equ ipped ▁with ▁a ▁water ▁recovery ▁system . ▁An ▁autom ated ▁people ▁m over , ▁the ▁A TL ▁Sky Tra in , ▁runs ▁between ▁the ▁r ental ▁car ▁center , ▁the ▁Dom estic ▁Terminal , ▁and ▁the ▁Gate way ▁Center ▁of ▁the ▁Georgia ▁International ▁Convention ▁Center , ▁while ▁a ▁four - lane ▁road way ▁that ▁sp ans ▁Inter state ▁ 8 5 ▁connect s ▁the ▁r ental ▁car ▁center ▁with ▁the ▁existing ▁air port ▁road ▁network . ▁ ▁Other ▁facilities ▁ ▁The ▁ 9 9 0 ▁To ff ie ▁Terra ce ▁hang ar , ▁a ▁part ▁of ▁H arts field – Jack son ▁Airport , ▁and ▁located ▁within ▁the ▁City ▁of ▁College ▁Park ▁corpor ate ▁limits , ▁is ▁owned ▁by ▁the ▁City ▁of ▁Atlanta . ▁The ▁building ▁now ▁houses ▁the ▁Atlanta ▁Police ▁Department ▁Hel ic opter ▁Unit . ▁It ▁once ▁served ▁as ▁the