[HOT] Road classification system in Nepal

Pierre Béland pierzenh at yahoo.fr
Tue Apr 28 16:04:23 UTC 2015

Hi Brad, 
In the mountains areas, there are often only paths between villages, no roads. It would help to look with elevation maps to understand the context.
The famous Nepal treks follow these paths. For example, there Langtang trail where people are reported lost today.http://www.openstreetmap.org/relation/1269089  I dont know the status of the Annapurna trek as of the recent years, but it used to be only on paths, no roads for more then 200 km.This link shows Chame on this Annapurna trek. Short segment of roads are reported. We should evaluate if there are really roads there for these short portions.

If not certain about road status in rural areas, First asssure that cars can circulate. 

Where cars can circulate between villages I, would indicate highway=unclassified. This still can be used by routing tools but has a lesser priority.
Anyone to document specificities for Nepal?

      De : Brad Neuhauser <brad.neuhauser at gmail.com>
 À : Robert Banick <rbanick at gmail.com> 
Cc : Pierre Béland <pierzenh at yahoo.fr>; "HOT at OSM (Humanitarian OpenStreetMap Team)" <hot at openstreetmap.org> 
 Envoyé le : Mardi 28 avril 2015 11h46
 Objet : Re: [HOT] Road classification system in Nepal
Longtime OSMer, infrequent HOTtie here, I wanted to follow up with a question on road tagging: on the Nepal Roads page, there is a section on Highways in Rural & Mountainous Areas which seems to imply that highway=path is usually the correct tagging for these roads. Is this correct? 

Also, in rural areas, what is the "default" tag that people can use if they're not sure how to classify a rural road/path? I haven't done a huge amount of editing on these tasks, but I've seen highway=path, highway=track, highway=road, highway=footpath, even highway=pedestrian used. I think the road classifications in the task instructions are better suited for urban areas, and more guidance for rural areas (where a lot of tracing activity is) would be helpful.


On Mon, Apr 27, 2015 at 7:59 AM, Robert Banick <rbanick at gmail.com> wrote:

Hi All,
Kathmandu Living Labs took the time to compile a really useful tagging guide specific to Nepal. 
There’s one specific tagging guide for roads here: http://wiki.openstreetmap.org/wiki/Nepal/Roads
There’s a more general Nepal tagging guide here: https://docs.google.com/spreadsheet/ccc?key=0AmYd3Y40Dfk8dGk4TzgtVmE5RExMVGNncEEzb2JtSHc&usp=drive_web#gid=0
I would strongly recommend following KLL’s guidelines wherever possible, they put a lot of thought into crafting a tagging scheme specific to Nepal’s context.
And for those who don’t know, a galli is an alley. Very useful word in Kathmandu :)
Sent from Mailbox

On Mon, Apr 27, 2015 at 12:20 PM, Pierre Béland <pierzenh at yahoo.fr> wrote:

I also saw a lot of inconsistencies. You can try to contact directly Nama Budathoki on this list and from Kathmandu living lab in Kathandu.
They have some difficulties and they might not be online. 

If you cannot contact, I suggest that you start to revise.

    De : Arun Ganesh <arun.planemad at gmail.com>
À : "HOT at OSM (Humanitarian OpenStreetMap Team)" <hot at openstreetmap.org> 
Envoyé le : Lundi 27 avril 2015 5h49
Objet : [HOT] Road classification system in Nepal
There seems to be inconsistencies in how the roads are classified, with many National Highways being marked as trunk, primary, secondary, tertiary and even unclassified.
Based on http://wiki.openstreetmap.org/wiki/Nepal/Roads#Road_Classification and my own experience with roads in India, the tagging should probably be more like this:
Trunk National Highway (ref=H##): trunkFeeder Roads (ref=F##): primaryDistrict Roads (ref=D##): secondary
used with appropriate surface=* tag
Can someone from the ground make any recommendations based on practical use? There does not seem to be any comprehensive documentation of how the existing tagging scheme came about and it looks quite messy.
The forum has some discussion about this with no clear consensus: http://forum.openstreetmap.org/viewtopic.php?id=30221

Arun Ganesh (planemad)
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