[Talk-in] tagging roads in India

PlaneMad thePlaneMad at gmail.com
Fri Aug 8 20:41:34 BST 2008


Im not so sure tagging the road according to its condition is the best way
to go. i feel its better if we tag it based on importance. there is a reason
why national highways are designated so, because of its importance in
connectivity. There is a minimum construction standard for every nh unlike
fore state highways. a two lane nh would be better maintained and have
signages that are superior to a four lane sh. Also, roads are getting
upgraded all across the country as we speak and it would be really difficult
to accurately tag it if we used such an approach.

I am for tagging based on its official designation as nh or sh rather than
its width because there is no way to verify the current width of any road in
the country. Another point is that at minimum zoom only motorways and trunk
highways are rendered. tagging an important 2 lane nh as primary would make
it invisible when at country level zoom.

As far as urban areas go, i have found that we can make the map more usable
by using the different tags to indicate the level of public transport
service as this is a direct indication of its importance. currently, i have
been using this approach for the city of chennai, and you get a very
different map than what we are used to seeing everywhere else. This map can
be used to check the accesibility of a location to the mtc bus services.
also such bus route roads have better maintainance by the corporation of
chennai.

-arun


On Tue, Aug 5, 2008 at 7:54 PM, Shajeer Mohammed <shajeer at hotmail.com>wrote:

> One pitfall we would have is looking at the map; one highway would contain
> all three colors!. Also I would suggest that we use this differentiation
> only for national highways, and stick to primary and secondary road type
> for
> all roads that are with in the city. For example AnnaSalai in Chennai or MG
> Road in Bangalore even though are four lane, should be termed as probably
> secondary.
>
> Added comments:
>
> http://wiki.openstreetmap.org/index.php/Talk:Tagging_Roads_in_India#Comments
>
>
> Regards
> Shajeer
>
>
>
> --------------------------------------------------
> From: "Kenneth Gonsalves" <lawgon at au-kbc.org>
> Sent: Tuesday, 5 August 2008 10:21
> To: <talk-in at openstreetmap.org>
> Subject: Re: [Talk-in] tagging roads in India
>
> >
> > On 04-Aug-08, at 8:01 PM, Mikel Maron wrote:
> >
> >> You might be right here .. the classifications used in the UK/
> >> Europe may not consistently correspond to actual road conditions in
> >> India.
> >> And in practice, these road classifications aren't strictly applied
> >> elsewhere .. sometimes it's a matter of judgement.
> >
> > my formal proposal here:
> >
> > http://wiki.openstreetmap.org/index.php/Talk:Tagging_Roads_in_India
> >
> >
> > --
> > regards
> >
> > Kenneth Gonsalves
> > Associate, NRC-FOSS
> > lawgon at au-kbc.org
> > http://nrcfosshelpline.in/code/
> >
> >
> >
> >
> >
> > _______________________________________________
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> > Talk-in at openstreetmap.org
> > http://lists.openstreetmap.org/listinfo/talk-in
> >
>
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