[talk-au] Highway route number prefixes for QLD and NT

[Leith Bade]

Hi Ross and Micheal,

Fair enough. Perhaps instead of trying to change the refs to include
prefixes, they should be removed for routes that are numerical only to
align with your recommendation.

Basically:
- in Tasmania: change "NH1" to "1"
- in Victoria: change all "S x" to "x"
- in West Australia: change all "Sx" to "x"

To separate shield types, a comprehensive network of route relations would
be implemented using the networks codes assigned in
http://wiki.openstreetmap.org/wiki/Custom_Highway_Shields#Australia

This would require a large amount of effort however, unless it was
automated which I know a lot of people do not like.

(Sorry Ross for the duplicate email, I realised I forgot to hit reply all)

Thanks,
Leith Bade
leith at mapbox.com

On 10 November 2015 at 18:46, Ross <info at 4x4falcon.com> wrote:

> To me your proposed changes appear to be a lot like tagging for the
> renderer:
>
> http://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer
>
> If the states are not doing alphanumeric then they should not be rendered
> that way.
>
> I'd suggest linking to the routes you are proposing to change and see what
> opinions you get.
>
> I'm sure this has been discussed before and I think the general consensus
> was "only tag with alphanumerics where it is signposted as such".
>
> You may also want to have a look at these:
>
> https://en.wikipedia.org/wiki/List_of_road_routes_in_Queensland
>
> There is a similar wikipedia page for each state.
>
> Cheers
> Ross
>
>
>
> On 10/11/15 16:19, Leith Bade wrote:
>
> Hi,
>
> I work for Mapbox as their only southern hemisphere contractor based in
> Canberra.
>
> Recently we begun a project to enhance our maps with highway shield images.
>
> Most of Australia has been fairly straightforward to develop shield
> selection rules for thanks to the alphanumeric system.
>
> However there are a states where no prefix is used with numeral only
> routes. Particularly Queensland (which has a mix of numeral and
> alphanumeric systems due to ongoing transition), the Northern Territory,
> and West Australia (which have not adopted the alphanumeric yet).
>
> In other states prefixes are used to separate National Highways (green and
> gold shields), National Routes (white shields) and State Routes (blue
> shields).
>
> Notably in Melbourne a "S xx" and West Australia a "Sxx" prefix is used
> for blue shield routes. Also in Tasmania "NH1" is used for the only
> non-alphanumeric route.
>
> For national consistency I would like to change all state routes in the
> Northern Territory and Queensland to use a "Sxx" prefix. Additionally in
> West Australia and Northern Territory to change all national highways to
> "NHxx" prefix.
>
> There is no use of a prefix currently anywhere for a national route,
> however changing the few remaining routes in West Australia, Northern
> Territory and Queensland to use a "NRxx" prefix would be useful.
>
> Finally I found state route 24 in Northern Territory is highway=trunk when
> at most it should be highway=primary to match the rest of the state. Also
> in Queensland national route 1 from Cairns heading out west is also trunk
> when at most it should be primary since it does not connect to a major city.
>
> I welcome any feedback or suggestions.
>
> Thanks,
> Leith Bade
> leith at mapbox.com
>
>
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