trip_id,start_time,end_time,headway_secs,exact_times
NS_WD,05:30:00,08:30:00,720,
NS_WD,08:30:01,15:59:59,1200,
NS_WD,16:00:00,19:00:00,720,
NS_WD,19:00:01,20:30:00,1200,
NS_WE,05:30:00,20:30:00,1800,
SN_WD,05:30:00,08:30:00,720,
SN_WD,08:30:01,15:59:59,1200,
SN_WD,16:00:00,19:00:00,720,
SN_WD,19:00:01,20:30:00,1200,
SN_WE,05:30:00,20:30:00,1800,
EW_WD,05:30:00,08:30:00,720,
EW_WD,08:30:01,15:59:59,1200,
EW_WD,16:00:00,19:00:00,720,
EW_WD,19:00:01,20:30:00,1200,
EW_WE,05:30:00,20:30:00,1800,
WE_WD,05:30:00,08:30:00,720,
WE_WD,08:30:01,15:59:59,1200,
WE_WD,16:00:00,19:00:00,720,
WE_WD,19:00:01,20:30:00,1200,
WE_WE,05:30:00,20:30:00,1800,
