Someone has been thinking about public transport routes, in the context
of bus routes, and put forward a quite detailed proposal. This can be
extended and generalised to include other forms of Public Transport.
http://wiki.openstreetmap.org/index.php/QROTI
Another interesting read is the http://www.transxchange.org.uk/
protocol for exchanging bus route information.
Cheers
Patrick
Peter Miller wrote:
Traditionally the GIS part (Where are the Stops? / What is the route?) is
managed separately from the schedules themselves. If we define the routes
and the stops in OSM then we should probably leave it to other systems to
handle the timetables (opentimetableservice?).
One handover bit that is worth including is the transport operator's own ID
for each Stop Point.
Google have a simple timetable transfer protocol which might be worth a
looking at.
http://code.google.com/transit/spec/transit_feed_specification.html
Mappers in San Francisco, Portland and a few other places might like to play
with some available schedules in this format.
http://code.google.com/p/googletransitdatafeed/wiki/PublicFeeds
Regards,
Peter
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:talk-
[EMAIL PROTECTED] On Behalf Of Mark Williams
Sent: 04 September 2008 06:55
To: Kevin Ryan
Cc: [email protected]; Gervase Markham
Subject: [Spam] Re: [OSM-talk] ferry route speed
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Kevin Ryan wrote:
Should probably give some indication of the max and min. Helsinki to
Tallinn can be done in about 40-45 minutes during the summer in the fast
ferries. Winter time the fastest is about 4 hours.
2008/9/2 Gervase Markham <[EMAIL PROTECTED]>
Shaun McDonald wrote:
That low speed is far too low. When I was on the Holyhead to Dublin
ferries recently, my GPS was giving 45mph for the return journey, and
25-30mph for the outward (different ferries, the return was the swift
fastcraft).
Hmm. Perhaps we need maxcrossingtime and mincrossingtime.
Gerv
Obviously, not all ferrries are the same. The low speed was indeed to
account for loading time.
max & min is fine, but doesn't account for time of day / no ferry for 5
hours.
Timetables can vary quite frequently.
I can't think of any way other than a link to the operator's URL that's
going to allow this to actually, really, work for timings, so some sort
of guide value is required - I do think this should be per route not
generic, the average I alluded to earlier is in the nature of a fix
because right now, I haven't seen an OSM-based router route on ferries
at all, so a silly time is better than avoiding it altogether.
Mark
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