[mkgmap-dev] Data / routing issue - Vancouver, BC ferriesFrom Samuel Longiaru longiaru at shaw.ca on Tue Jun 13 06:39:37 BST 2017
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 Otherwise, if the wiki is outdated and the data are acceptable, then could there be a problem here, or could I just need an adjustment to something in my args list?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
- Previous message: [mkgmap-dev] Commit r3972: fix parsing of config file for --road-name-config option.
- Next message: [mkgmap-dev] Data / routing issue - Vancouver, BC ferries
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the mkgmap-dev mailing list