question about shore line east gtfs data posted 11/23/2016

stop_times_with_shared_trip_and_stop.rb

#
# I would expect entries in the stop_times.txt file to be unique when grouped by `trip_id` and `stop_id`.
#
# Indeed, of the current file's 520 entries, 510 are unique, but 10 are not (5 groups of 2).
#
# The following data structure contains entries from stop_times.txt grouped by `trip_id` and `stop_id`.
# 
# My question is, are these entires duplicative or do they have some significance?
#
# Thank you!
#

{
 "1610-NHV"=> [
   {"trip_id"=>"1610",
    "arrival_time"=>"9:12:00",
    "departure_time"=>"9:12:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"28"},
   {"trip_id"=>"1610",
    "arrival_time"=>"9:16:00",
    "departure_time"=>"9:16:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"29"}],
 "1633-NHV"=> [
   {"trip_id"=>"1633",
    "arrival_time"=>"7:00:00",
    "departure_time"=>"7:00:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"92"},
   {"trip_id"=>"1633",
    "arrival_time"=>"7:08:00",
    "departure_time"=>"7:08:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"93"}],
 "1637-NHV"=> [
   {"trip_id"=>"1637",
    "arrival_time"=>"7:36:00",
    "departure_time"=>"7:36:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"113"},
   {"trip_id"=>"1637",
    "arrival_time"=>"7:40:00",
    "departure_time"=>"7:40:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"114"}],
 "1640-NHV"=> [
   {"trip_id"=>"1640",
    "arrival_time"=>"17:44:00",
    "departure_time"=>"17:44:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"131"},
   {"trip_id"=>"1640",
    "arrival_time"=>"17:48:00",
    "departure_time"=>"17:48:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"132"}],
 "1644-NHV"=> [
   {"trip_id"=>"1644",
    "arrival_time"=>"18:05:00",
    "departure_time"=>"18:05:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"164"},
   {"trip_id"=>"1644",
    "arrival_time"=>"18:08:00",
    "departure_time"=>"18:08:00",
    "stop_id"=>"NHV",
    "stop_sequence"=>"165"}]}

#
# based on: Shore Line East GTFS data 
# source: http://www.my-site.com/gtfs-feed.zip
# modified at: Wed, 23 Nov 2016 09:58:36 EST -05:00 
# etag: 1ac9-542737db15840
#

Seeing this issue still.

trip_id	arrival_time	departure_time	stop_id	stop_sequence
1668b3	20:10:00	20:10:00	ST	269
1668b3	20:15:00	20:15:00	NHV	270
1668b3	20:20:00	20:20:00	ST	271
1668b3	21:00:00	21:00:00	WES	272
1668b3	21:05:00	21:05:00	OSB	273

Expecting non-duplication of "ST" in this sequence.