Comments (4)
mpadge
commented on July 30, 2024
Ah yes, thanks @Maxime2506 - i see that this feed implements the alternative yet permitted version of calendar_dates. The package currently can not handle that usage, so I'll have to fix it asap. I'll let you know when it's done ...
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Maxime2506
commented on July 30, 2024
Thanks. I think a code to filter_by_date would be useful. I'm writing one
ad hoc for my issue, but a general solution is missing.
M.
Le jeu. 17 oct. 2019 à 15:09, mark padgham <[email protected]> a
écrit :
… Ah yes, thanks @Maxime2506 <https://github.com/Maxime2506> - i see that
this feed implements the alternative yet permitted version of
calendar_dates
<https://developers.google.com/transit/gtfs/reference/#calendar_datestxt>.
The package currently can not handle that usage, so I'll have to fix it
asap. I'll let you know when it's done ...
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mpadge
commented on July 30, 2024
@Maxime2506 the commit referenced above implements a date parameter for gtfs_timetable, so you can do the following (noting this won't be enduringly reproducible, because the "latest" version is downloaded, with dates only extended from approximately now in to the future, so the value of date will have to be updated to repeat in future cases):
library (gtfsrouter)
url <- "https://transitfeeds.com/p/regie-autonome-des-transports-parisiens/413/latest/download"
f <- "paris-gtfs.zip"
if (!file.exists (f)) download.file (url, destfile = f)
gtfs <- extract_gtfs (f)
gtfs <- gtfs_timetable (gtfs, date = 20191030)
gtfs_route (gtfs, from = "Olympiades", to = "République", start_time = c (9, 0))
#> route_name trip_name stop_name arrival_time
#> 1 14 205 Olympiades 09:01:00
#> 2 14 205 Bibliothèque-François Mitterrand 09:02:00
#> 3 14 205 Cour Saint-Emilion 09:03:00
#> 4 14 205 Bercy 09:05:00
#> 5 14 205 Gare de Lyon 09:06:00
#> 6 14 205 Châtelet 09:10:00
#> 7 11 202 Châtelet 09:17:00
#> 8 11 202 Hôtel de Ville 09:18:00
#> 9 11 202 Rambuteau 09:19:00
#> 10 11 202 Arts-et-Métiers 09:20:00
#> 11 11 202 République 09:22:00
#> departure_time
#> 1 09:01:00
#> 2 09:02:00
#> 3 09:03:00
#> 4 09:05:00
#> 5 09:06:00
#> 6 09:10:00
#> 7 09:17:00
#> 8 09:18:00
#> 9 09:19:00
#> 10 09:20:00
#> 11 09:22:00Created on 2019-10-17 by the reprex package (v0.3.0)
I'll re-open the issue straight away, to ensure that gtfs_route without first running gtfs_timetable issues an appropriate message about needing to filter with an explicit date. Other than that, does that now work for you? Thanks for finding this little glitch 😄
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mpadge
commented on July 30, 2024
This commit ensures that an appropriate error message is issued for feeds which use "calendar_dates" instead of "calendar":
library(gtfsrouter)
url <- "https://transitfeeds.com/p/regie-autonome-des-transports-parisiens/413/latest/download"
f <- "paris-gtfs.zip"
if (!file.exists (f)) download.file (url, destfile = f)
gtfs <- extract_gtfs (f)
gtfs_route (gtfs, from = "Olympiades", to = "République", start_time = c (9, 0))
#> Error: This appears to be a GTFS feed which uses a 'calendar_dates' table instead of 'calendar'.
#> Please first construct timetable for a particular date using 'gtfs_timetable(gtfs, date = <date>)'
#> See https://developers.google.com/transit/gtfs/reference/#calendar_datestxt for details.
gtfs <- gtfs_timetable (gtfs, date = 20191030)
gtfs_route (gtfs, from = "Olympiades", to = "République", start_time = c (9, 0))
#> route_name trip_name stop_name arrival_time
#> 1 14 205 Olympiades 09:01:00
#> 2 14 205 Bibliothèque-François Mitterrand 09:02:00
#> 3 14 205 Cour Saint-Emilion 09:03:00
#> 4 14 205 Bercy 09:05:00
#> 5 14 205 Gare de Lyon 09:06:00
#> 6 14 205 Châtelet 09:10:00
#> 7 11 202 Châtelet 09:17:00
#> 8 11 202 Hôtel de Ville 09:18:00
#> 9 11 202 Rambuteau 09:19:00
#> 10 11 202 Arts-et-Métiers 09:20:00
#> 11 11 202 République 09:22:00
#> departure_time
#> 1 09:01:00
#> 2 09:02:00
#> 3 09:03:00
#> 4 09:05:00
#> 5 09:06:00
#> 6 09:10:00
#> 7 09:17:00
#> 8 09:18:00
#> 9 09:19:00
#> 10 09:20:00
#> 11 09:22:00Created on 2019-10-18 by the reprex package (v0.3.0)
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