trip_id,start_time,end_time,headway_secs
PF101,07:00:00,08:00:00,600
PF102,08:00:00,20:00:00,600
PF103,20:00:00,22:00:00,600
PF104,22:00:00,24:00:00,600
PF201,07:00:00,08:00:00,600
PF202,08:00:00,20:00:00,600
PF203,20:00:00,22:00:00,600
PF204,22:00:00,24:00:00,600
