[Talk-ca] Logged Canadian Road Trip

[Tim Francois]

Hi all,

I live in the UK, but parents live in Calgary. This summer we went on a 
somewhat extended roadtrip, taking in Alberta, BC, Yukon and Alaska. I 
had my netbook and GPS mouse with me and logged pretty much the entire 
trip, checking the OSM map accuracy using Navit (on Linux). Some major 
roads we traveled include:

- Trans-Canada from Calgary to Vancouver
- Highway 4(a) on Vancouver Island from Parksville (Nanaimo) to 
Tofino/Ucluelet
- Highway 19 Parksville to Port Hardy (including little bit around 
Telegraph Cove)
- Highway 16 from Prince Rupert to Highway 37 (Cassiar Highway) intersection
- Cassiar Highway (37) from Highway 16 up to Alaska Highway intersection 
(including road to Stewart, BC and Hyder, AK)
- Almost entire Alaska Highway from Tok, AK to mile 0 in Dawson Creek
- All Highways on the Klondike loop, including:
-- Highway 2 (Klondike Highway) from Dawson City to Alaska Highway
-- Highway 11 (Silver Trail) from Stewart Crossing to Keno
-- Highway 9 (Top of the World Highway) from Dawson City to USA border
-- Relevant highways in Alaska, though that's not for this mailing list
- Dempster Highway from mile 0 into NWT
- Highway sections from Dawson Creek to Calgary (via Highway 22)

So I have GPX files for almost the entire trip, with a point logged 
every second. My questions:
1) All of the highways are on OSM in one form or another, but I'm 
assuming most were not added via GPX points. When following on Navit the 
mapped road sometimes varied substantially from the actual road. Is this 
a correct assumption?
2) If 1) is correct, is it then OK to improve all these highways with 
the GPX tracks?
3) Is someone else already doing this, or is there a larger project 
ongoing under which this should be maintained?

Any info/input is gratefully received - I don't want to start updating 
things and then realise I'm treading on someone else's toes!!

Thanks
Tim