[talk-ph] RFC - Proposed mapping guidelines for roads (classifications, names)

[Jherome Miguel]

Continuing on, I raised this unanswered question about downgrading trunks
where significantly bypassed by a parallel expressway (unless it has a
significant section resembling an expressway as in proposal). I thinking of
doing that for these road segments currently tagged trunk.

- National Highway/Maharlika Highway/Manila South Road (Route 1,
Muntinlupa-Calamba-STAR Santo Tomas exit) — bypassed by SLEX
- JP Laurel Highway/Manila-Batangas Road (Route 4, Santo Tomas-Batangas
City) — bypassed by STAR Tollway
- MacArthur Highway (Route 1, Caloocan-Tabang, Guiguinto) — bypassed by NLEX
- Osmeña Highway (Route 145) and Quirino Avenue (Route 140, Roxas
Boulevard-Osmeña Highway) — bypassed by Skyway
— Olongapo-San Fernando-Gapan Road/Jose Abad Santos Avenue (Route 3,
Dinalupihan Junction-Olongapo) — bypassed by SCTEX
— Manila North Road (Route 2, TPLEX Urdaneta exit-Kennon Road)

(for future downgrades, once new parallel expressway under construction
opens. Might need some discussion)

— Aguinaldo Highway (Route 62/419, Bacoor-Dasma-Tagaytay) — to be bypassed
by CALAX. Will also downgrade all the remaining trunks in Cavite.
— Antero Soriano Highway/Centennial Road/Tanza-Trece Martires Road (Route
64, Kawit-Tanza-Trece Martires) — to be bypassed by CALAX. Will also
downgrade all the remaining trunks in Cavite.
— Governor’s Drive (Route 65, Dasma-Biñan) — to be bypassed by CALAX. Will
also downgrade all the remaining trunks in Cavite.
— Tarlac-Santa Rosa Road (Route 58) — to be bypassed by CLLEX (downgrade to
be done once whole Tarlac City-Cabanatuan route is opened)

Beside that, I’ll prepare maps (for Luzon, Metro Manila, Panay, Negros,
Cebu, Samar and Leyte, and Mindanao) of routes to be classified trunk using
the proposed criteria. There is a significant need to rationalize the trunk
networks, especially in the less populated islands or regions.
>From there, we go on to determine the primaries and so on. I’ll also
post a list
of major roads and their proposed future classifications (to be divided by
region and province) on the wiki. Any further comment or feedback is
welcome here or on the wiki.

On Tue, Mar 2, 2021 at 11:54 AM Jherome Miguel <jheromemiguel at gmail.com>
wrote:

> For names, I agree there is a problem. Posted road name can be
> inconsistent across different jurisdictions or even within the same
> jurisdiction. That’s the reason we need to review how we map street names
> (we rely too much on road signs). There’s a lot of instances the road signs
> omit suffixes (especially “Street/St”) while the addresses use the full
> name. We seem to forget a road’s name= is also used for addr:street=.
>
> The main point behind the proposed guidelines is to better align PH
> practice with global tagging practices. We have a road classification
> system that  is too watered down and is somewhat only appropriate to urban
> areas. Our practice on naming roads had rather preferred short names to
> reduce clutter and deter mappers who abbreviate them, but that somewhat
> raises issues about mapping for the renderer (whether to keep, abbreviate
> or remove street name affixes is up to them), plus, we’ve got into the
> problem of relying too much on street signs, forgetting some roads have no
> names posted on any official road sign and the name verifiable from asking
> locals or finding posted addresses, and addresses posted on business signs
> (or even their ads, business cards and things) should be used as sources as
> well.
>
> On Tue, Mar 2, 2021 at 4:09 AM Michael Cole <colemichae at gmail.com> wrote:
>
>> We have a problem with names even 1 way streets, real law vs locality.
>> And i live in poblacion mkt, mmda break the actual law, who is correct? Do
>> we take the word of corodiles over the country or.enforce the law and get
>> people.arrested fined illegally?
>>
>> My 2 cents ..
>>
>> On Tue, Mar 2, 2021, 1:23 PM Jherome Miguel, <jheromemiguel at gmail.com>
>> wrote:
>>
>>> Hi all,
>>>
>>> After somewhat slow progress to gather ideas and feedback for a new road
>>> classification scheme, I finally decided to write the final version of the
>>> new tagging scheme at:
>>> https://wiki.openstreetmap.org/wiki/Philippines/Mapping_conventions/Roads
>>> (see “Classification” section)
>>>
>>> The proposal is planned to replace those at
>>> https://wiki.openstreetmap.org/wiki/Philippines/Mapping_conventions (sections,
>>> “Roads”, “Names”)
>>>
>>> *Why? *The existing road classification scheme since 2015 needs a major
>>> rewrite since I’m seeing major problems with the tree analogy used to
>>> justify the existing scheme. Why use primary for every road to each
>>> municipality regardless of its population size (just because they’re a
>>> branch or an alternate to a trunk)? Shouldn’t we use trunks only on the
>>> most important highway links between the largest cities beside the
>>> expressways? Many of our provinces lack secondaries in the rural area but
>>> do have lots of tertiaries surrounded by trunk and primary roads (and a
>>> total lack of secondary roads). Lots of Philippines mappers (including me)
>>> ignore that bad scheme, which just came to effect without discussion or
>>> consultation. It’s also time for us to take community population sizes as
>>> well as designations in account when classifying roads.
>>>
>>> Also, guidelines about road names are to be affected as well (following
>>> latest discussion). This includes changes in the existing guideline to
>>> prefer full names as used in addresses (since names posted in street signs
>>> can be inconsistent). One open question is on how to name many of the major
>>> rural roads without posted names (national roads aside, whose names, unless
>>> the locally verifiable posted name is different, can be found from the DPWH
>>> road database) until their actual names are verified. For me, it’s in the
>>> form “<most important community>-<less important community> Road”, though I
>>> also experimented with adding noname=yes instead of adding placeholder
>>> names using the format mentioned above.
>>>
>>> Any comments/suggestion/feedback on this are welcome here or on the
>>> article’s talk page.
>>>
>>> Thanks,
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> talk-ph mailing list
>>> talk-ph at openstreetmap.org
>>> https://lists.openstreetmap.org/listinfo/talk-ph
>>>
>>
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