trip_id,start_time,end_time,headway_secs,exact_times
EW,08:00:00,20:00:00,3600,1
WE,08:00:00,20:00:00,3600,1
SATEW,08:00:00,18:00:00,3600,1
SATWE,08:00:00,18:00:00,3600,1
