trip_id,start_time,end_time,headway_secs
TL-118,11:00:00,11:30:00,1338
TL-119,11:30:00,12:00:00,1338
TL-120,12:00:00,12:30:00,1338
TL-121,12:30:00,13:00:00,1338
TL-122,13:00:00,13:30:00,1338
TL-123,13:30:00,14:00:00,1338
