After making the descend down Howardsville grade NS 188 (Atlanta,GA-Detroit,MI) coast down the single main just outside of Collegedale,TN on the NS Atlanta North-End. After knocking down the advance-approach signal at the MP-19.4, NS 188 will follow the northbound NS 174 up the number 2 main at Ooltewah and, straight to the crew change point at Brown.
