Travel Mapping
Highway Data Discussion => Updates to Highway Data => Solved Highway data updates => Topic started by: mapcat on September 04, 2016, 10:56:44 pm
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The western end is now at Exit 187 (Campbell Dr), not Exit 184. It's signed as 417 between the two exits. There's some construction west of there as well, so they may not be done adding to it.
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Bumping this, with my own observations to add to mapcat's.
Construction of the Arnprior bypass is complete. While there has been talk of extending ON 417 again west toward Renfrew, there is no new construction in progress, so this isn't a moving target.
The highway has been twinned west of new exit 187, to just west of the Schell Dr. underpass/closed intersection (detour signage west of there indicate there had been an intersection, but not anymore). Eastbound, the 100km/h limit reserved for 400-series freeways starts just west of Schell Dr., but the first ON 417 sign is just east of new exit 187. Westbound, there is an ON 417 sign just west of exit 187. The first ON 17 marker WB, and the last such marker EB, are both west of Schell Dr. There is no signage explicitly saying where ON 17 ends and ON 417 begins.
We could do what we did last time, and move the ON 17/ON 417 junction to new exit 187. Or we could put the junction west of exit 187 at Schell Rd., which is more consistent with Mapnik and Google Maps. I'm OK with either, but let's do one or the other.
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I'll try to deal with this in the next few days.
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GeoBase 12.0 shapefiles have the end at Campbell Dr, but are not new enough to reflect the twinning west of there. FWIW.
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The short twinned section west of the Campbell Dr. interchange may've been built in the same project . If so, later shapefiles would probably place the endpoint at Campbell Dr.
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Those were the most recent shapefiles as of about four minutes before my post. :)
If so, later shapefiles would probably place the endpoint at Campbell Dr.
I don't think I'd reach the same conclusion right away. Thinking this thru out loud here...
Campbell Dr, in the 12.0 shapefiles, is (barely) after the end of the then-twinned section, depicted as a single carriageway.
473388-5 http://www.openstreetmap.org/?lat=45.434941&lon=-76.401453
473388-4 http://www.openstreetmap.org/?lat=45.434970&lon=-76.402120
473388-3 http://www.openstreetmap.org/?lat=45.435035&lon=-76.403441
473388-2 http://www.openstreetmap.org/?lat=45.435098&lon=-76.404846
473388-1 http://www.openstreetmap.org/?lat=45.435118&lon=-76.405211It's the first at-grade intersection west of the last interchange (184).
8.0 (dated 2012--11-07): W end at the end of the twinned section, where two carriageways converge to one at the W end of Exit 180's footprint.
If we assume the next revision of the shapefiles will use the where-2-carriageways-become-1 approach, then the end would probably be at *SchDr. Maybe. As to whether that should be rounded off to the next interchange east (Campbell/187) anyway, well... we veterans know to search the old forum for "Arnprior". ;) No, I'm not going to reread the old thread(s) right now. James, do what thou wilt. :D
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What I'm going to do is at least update the routes to Exit #187. That's the safest bet as of right now. Especially since there's no imagery out there showing the end of the newest construction, and both Google & OSM disagree as to where it exactly ends.
Now if some more imagery comes out that clearly defines the end of the 4 lane, or StreetView gets an update in that area (very interested in seeing the signage myself at Exit #187), then I can consider possibly extending the route (& shortening ON-17) to the point were the carriageways merge.
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And submitted (https://github.com/TravelMapping/HighwayData/pull/1309). 8)