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[mkgmap-dev] Data / routing issue - Vancouver, BC ferries

From Ticker Berkin rwb-mkgmap at jagit.co.uk on Tue Jun 13 11:04:47 BST 2017

Quick thought - this caught me out with ferries - have you requested
"No Toll Roads" in routing. In openStreetMap, some ferry routes
explicitly say toll=yes/no and some don't bother saying anything, and I
think the default style then doesn't mark it as toll - but I think it
would be better if it did.


On Tue, 2017-06-13 at 06:20 +0000, Gerd Petermann wrote:
> Hi Samuel,
> quick question: do you use http://download.geofabrik.de/north-america
> /canada/british-columbia-latest.osm.pbf
> as input for splitter? Maybe other files as well?
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Samuel Longiaru <longiaru at shaw.ca>
> Gesendet: Dienstag, 13. Juni 2017 07:39:37
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: [mkgmap-dev] Data / routing issue - Vancouver, BC ferries
> Greetings all,
> I have been lurking on this list for several years now and first want
> to
> congratulate all for such a fantastic project. Very, very nicely
> done!
> But I have run into an issue with the maps I create of British
> Columbia
> and am unable to determine whether it is a data or mkgmap issue.  The
> problem is that ferries coming out of the Tsawwassen ferry terminal
> to/from Vancouver island do not get routed. For example finding a
> route
> from Kamloops (BC interior) to Victoria, the route on my Nuvi 255
> shows
> a 1400 km diversion north to the coastal town of Bella Coola, then a
> ferry to Port Hardy on the north end of the island, then south to
> Victoria. This routing is suggested whether I use maps I've generated
> myself or ones downloaded from garmin.openstreetmap.nl.  It is
> interesting, however, that other routing engines (GraphHopper, OSRM
> and
> Mapzen) route over the ferries as expected... Kamloops direct to the
> Tsawwassen terminal, then ferry to the island.
> I question, however, whether the ferry routes are mapped properly as
> just west of the Tsawwassen terminal is a node where all routes join
> and
> branch http://openstreetmap.org/node/660826272 . A similar node
> exists
> east of the Swartz Bay terminal on Vancouver Island - 323308217.  The
> wiki documentation for tag route=ferry states in part "The ferry
> route
> must not branch in the water, so it must always be drawn to the ferry
> dock. This is important for routing to work correctly."  So when the
> wiki says that it is important for routing... whose routing? Clearly
> this is not a requirement for these other engines, but is it the case
> for us?
> If we need data in the form as that described in the wiki, then I
> will
> contact the Talk-CA list and see if there is someone local who can
> fix
> it... i.e., recreate it as per the wiki standard.  Otherwise, if the
> wiki is outdated and the data are acceptable, then could there be a
> problem here, or could I just need an adjustment to something in my
> args
> list?
> Thanks in advance,
> Samuel Longiaru
> Kamloops, BC Canada
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