trip_id,start_time,end_time,headway_secs
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
