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

Jherome Miguel jheromemiguel at gmail.com
Sun Jul 4 05:29:52 UTC 2021


Continuing on, I would also like to bring up some points back on the
earlier discussion at the git (see
https://github.com/OSMPH/papercut_fix/issues/38)

First, I see problems with Rally’s methodology for determining trunk roads.
Particularly problematic is using the tree-trunk analogy (a.k.a. “scissors
test”) to determine trunk roads. I completely disagree with that for it
would made a lot of roads get upgraded to trunk because it’s being an
critical link for movement of goods in one’s opinion, and led to primary
and below its “branches”. I agree trunk roads are generally vital highway
links, but this time, we need a more reasonable cut-off, that is, the route
should a key road link between major population centers (i.e. large
cities).

Another problem back in the first discussions on possible reform of the
existing scheme back in 2018 is regarding the designation national road.
Yeah, I agree it’s more of a funding classification, but during that time,
I haven’t mentioned and accounted for its subclasses (national primary,
national secondary, national tertiary) as found in the DPWH department
order I referenced, which has defining functional criteria that is of
relevance in OSM, resulting to the argument to deemphasize official
designation and use informal tests that would only worsen the problem with
the already dense trunk road network. Add to the problem is the presence of
two proposals, one by me (which is based on multiple factors) and one by
Erwin (which ties OSM classification with gov’t designation).

Beyond that, I just realized after digging into older discussions in the
wiki that the existing road classification schemes documented in the wiki
are more of suggestions by one or few users. I can’t find any discussion
here and in the wiki leading to their adoption as formal guidelines; these
suggestion became guidelines as mappers begin to take them as such. Again,
the prevailing scheme the from 2015 is being more of an amendment to the
pre-existing scheme.

Until we reach any agreement here, we would be following the existing
classification scheme, but taking note these are more of suggestions or
rough guidelines, we should have a relaxed approach on applying these. I
would also tag the existing scheme documented in the wiki as containing
conflicting, controversial or outdated information.
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