[Talk-ko] Highway labeling

[Andrew Errington]

On Mon, 14 Sep 2009 17:31:00 Jeffrey Martin wrote:
> Hi.
>
> Thanks for the invitation.
>
> I haven't worked on my Korea data in a long while. I have lots of tracks
> and notes that need to be made into maps.
>
> I am concerned about the best way to label the different kinds of highways.

Hi Jeffrey (and everyone),

I, too, am a little confused about this, and I want to do the Right Thing.

I was hoping for a few more subscribers before we started discussing important 
matters, but I'll go with what we have.  There are 7 members on this list.  
If you know of anyone else mapping in Korea, please encourage them to sign 
up.

Road classification is mentioned here:
http://wiki.openstreetmap.org/wiki/Ko:Map_Features

and here:
http://wiki.openstreetmap.org/wiki/Key:highway
(about 3/4 down the page)

I would appreciate it if a Korean speaker could please translate the 
Ko:Map_Features page into English, or at least add a few English sentences to 
explain the reasons behind each road classification choice.  Google translate 
does a good job, but it's not *entirely* clear.

Unfortunately these two pages show different information.  For example, the 
Ko:Map_Features page doesn't mention 'trunk' roads, but the Key:highway page 
does.

I am originally from the UK, and I studied Ordnance Survey maps in great 
detail for a hobby of mine.  My mapping ideas are affected by this 
experience.

I think we need to clarify the Ko:Map_Features page and add some English 
sentences, and I think we should consider including trunk roads.

In my mapping I have been trying to follow these rules, from the largest to 
the smallest road:

1.  Main highways or toll roads- motorway
These should be drawn as two ways, one way in each direction.

2. Roads with numbers in circles, i.e. (3) (24) (26) - trunk
Looking at the map of all of Korea there seems to be inconsistency here.  I 
suggest that all roads labelled with circles should be trunk.

3. Roads with numbers in square boxes [1084] [1089] - primary
Again, some inconsistency.

I haven't changed the classification of these roads in my local area yet as 
they were already present when I started mapping.


4. Main roads through the town- secondary
These are generally wide and usually have more than one lane in each direction

5. Other roads- tertiary
I use tertiary for smaller roads with a yellow line down the middle, in and 
out of town.

6. Streets- residential
In town, smaller roads without a yellow line

7. Roads- unclassified
These are non-residential roads with no yellow lines.  I use this 
classification for anything that a car can go on, including the concrete 
roads running through rice fields.

8. Other roads- service
This is anything which is not a driveway, parking aisle or alley.  I use this 
for muddy tracks alongside a river, for example

service:driveway
A road into a car park or school grounds

service:alley
An alley that a car can go down

service:parking-aisle
Around carparks

footway
An alley a car can't get through, or any obvious footpath.

Sometimes I am not sure which classification I should use for a road, but this 
is a fairly complete summary of what I do.

I have some more questions about tagging things in Korea, but I would like to 
keep this thread focused on roads.

Thank you,

Andrew

PS if you are interested, here is where I am mapping: 
http://osm.org/go/54z6I74