trip_id,start_time,end_time,headway_secs,exact_times
TRIP_L5_001,06:00:00,22:00:00,900,0
TRIP_L5_002,07:00:00,23:00:00,900,0
TRIP_L2_001,06:30:00,21:30:00,1200,0
TRIP_L2_002,08:00:00,22:00:00,1200,0
TRIP_L7_001,06:45:00,20:00:00,1800,0
TRIP_L12_001,07:30:00,19:30:00,1800,0