I'm talking more the Alaska highway, or US 50 through rural Nevada - not
driveways. Or the Transcanadian Highway ("Follow the only road. Follow the
only road" - South Park). Pick up any atlas; they'll show all sorts of minor
roads in desert areas. Of course, being a private drive or barely passable
road is usually a reason to not show it at all.
Trunk roads and Motorways are different from primary/secondary/tertiary roads
because it implies a certain physical description (I would not make Skyline a
trunk road, by the way.) In Navteq data, there is a function road
classification that gives the Transcanadian highway the importance as limited
access highways in the US (sometimes higher; some motorways are assigned FRC 2
in their scheme, if there's a local cluster). A motorway has significant
physical differences that it ought to be rendered differently; but *when* it
gets rendered is a different matter.
If you lived in Central Nunavut (I assume that's what you're implying about
your relative importance) - maybe your place *should* show up prominently on a
map. Explorers getting stuck in the ice may be hungry.
-Alan
________________________________
From: Karl Newman <siliconfi...@gmail.com>
To: Alan Brown <adbrown1...@yahoo.com>
Cc: talk-us@openstreetmap.org
Sent: Wednesday, December 17, 2008 10:52:55 AM
Subject: Re: [Talk-us] Road classification
On Wed, Dec 17, 2008 at 10:36 AM, Alan Brown <adbrown1...@yahoo.com> wrote:
But - what percentage of local traffic or through traffic ends up on those
roads? It's relative importance that matter. If you need to go through an
area - what do you take?
Same concept applied to city labelling - look at a globe some time. It's not
unusual to see "Thule, Greenland" labelled, or "Iqaluit, Nunavut". Why?
Because they're the most significant towns in the area - even though they have
tiny populations.
On the other hand - what about San Jose, CA, 10th biggest city in the US? They
always label San Francisco first - even though San Jose is bigger, with a
million people. It's perceived importance.
-Alan (self-conscious resident of San Jose)
Just because it's locally important doesn't make it a trunk road, though. My
driveway is locally important to me and takes 100% of traffic in and out of my
garage...
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