[talk-ph] Your final say on the proposed road classification scheme

[Timeo Gut]

Hello Eugene,

As mentioned in a previous mail 
<https://lists.openstreetmap.org/pipermail/talk-ph/2021-April/006734.html>, 
I've already added the designation values that you previously proposed 
to the documentation on the road classification page 
<https://wiki.openstreetmap.org/wiki/Philippines/Mapping_conventions/Roads/Classification>. 


These are:
national_primary_road
national_secondary_road
national_tertiary_road
provincial_road
municipal_road (also serves for city roads so that we don't need to 
retag when towns become cities)
barangay_road

Adding expressway  seems to be a no-brainer. I also like the suggestion 
of a separate designation for city roads as I think the reduced 
potential for confusion outweighs the effort needed for retagging when 
municipalities  become cities.

As for the specific values, I find the previous variant that includes 
the road suffix much better because it's a clear distinction from 
designation for administrative entities (especially for barangay roads 
where the value without suffix would be identical).

Regards,
Timmy


On 22/05/2021 16:34, Eugene Alvin Villar wrote:
> HI Jherome,
>
> I forgot to add, I think we should also include tagging the official 
> legal classifications of roads using the "designation" key: 
> https://wiki.openstreetmap.org/wiki/Key:designation 
> <https://wiki.openstreetmap.org/wiki/Key:designation>
>
> I think we can have the following values: "expressway", "national", 
> "provincial", "city", "municipal", and "barangay". We might also need 
> to break down the "national" value into "national_primary", 
> "national_secondary", and "national_tertiary" following the DPWH classes.
>
> ~Eugene
>
> On Sun, May 16, 2021 at 5:02 AM Jherome Miguel 
> <jheromemiguel at gmail.com <mailto:jheromemiguel at gmail.com>> wrote:
>
>     Hi, everyone,
>
>     It's been a month since the last discussion on road
>     classifications, that time regarding special considerations for
>     major roads within certain islands as well as missing road links
>     and bypass/diversion roads under construction. Now, I'll be
>     presenting the final version of the proposal at
>     https://wiki.openstreetmap.org/wiki/Philippines/Mapping_conventions/Roads/Classification
>     <https://wiki.openstreetmap.org/wiki/Philippines/Mapping_conventions/Roads/Classification>.
>
>
>     Summary of the proposed guidelines:
>     - Motorway = Expressways (HSH-1 standard)
>     - Trunk = highways between large cities; HSH-2 expressways (none
>     existing yet). In large urban areas composed of many large cities
>     like Manila or Cebu, should be applied sparingly and limited to
>     primary through routes across the area that are not expressways
>     and connect with longer trunk routes. Trunk routes should
>     generally be moved to bypasses where they exist.
>     - Primary = highways between small cities, large municipalities
>     and provincial capitals that are neither cities or large
>     municipalities; major arterials in urban context.
>     - Secondary = highways between medium-sized municipalities; minor
>     arterials in urban context.
>     - Tertiary = roads between small municipalities and most
>     barangays; collector roads in urban context.
>     - Unclassified = other local roads that are not residential in
>     nature; other smaller roads connecting sitios and puroks in rural
>     areas
>     - Residential = residential streets
>     - Track = farm or forestry tracks
>     - Service = driveways, parking lot roads, alleys, emergency median
>     openings on expressways
>
>     Some factors that can affect choice of classification are:
>
>     - administrative designation
>     - connectivity
>     - existing network topology (particularly relevant in small
>     islands where there are few major roads)
>     - function (expressway, major/minor arterial, collector, local)
>     - physical qualities (no. of lanes, shoulders, road width,
>     presence of median/center island)
>     - sizes of settlements served
>
>     I want anyone's final say here before we can adopt them as
>     guidelines in our main mapping convention page.
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