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

[Eugene Alvin Villar]

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

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 
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
> .
>
> 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.
> ___
> talk-ph mailing list
> talk-ph@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-ph
>
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Re: [talk-ph] Your final say on the proposed road classification scheme

[Timeo Gut]

Hello Eugene,

As mentioned in a previous mail 
, 
I've already added the designation values that you previously proposed 
to the documentation on the road classification page 
. 



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 



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 
mailto:jheromemig...@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

.


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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