trip_id,start_time,end_time,headway_secs
MTR-CTG,4:00:00,22:00:00,3600
MTR-BAQ,4:00:00,16:00:00,3600
MTR-MDE,4:00:00,21:00:00,3600
CTG-MTR,4:00:00,21:00:00,3600
BAQ-MTR,4:00:00,17:00:00,3600
MDE-MTR,4:00:00,23:00:00,3600