trip_id,arrival_time,departure_time,stop_id,stop_sequence,stop_time_desc,pickup_type,drop_off_type,timepoint
trip1,14:00:00,14:00:00,stop2,0,"",0,1,""
trip1,15:00:00,15:00:00,stop3,1,"",2,,"0"
trip1,16:00:00,16:00:00,stop4,2,"",2,-999,