[talk-ph] changes of raod types

Eugene Alvin Villar seav80 at gmail.com
Fri Jan 22 15:39:09 GMT 2010


Here's my interpretation: unclassified and residential are the
lowest-importance general roads. These two form the lowest level (above the
service-type roads) and residential is used for roads within residential
areas like subdivisions. Then in terms of increasing importance, roads go
from tertiary, secondary, primary to trunk. trunk roads form the highest
level of a road network. motorways are trunk roads that have special
features (limited entrances, high-speed, often has toll fees, etc.).

think of it like te circulatory system. trunk/motorway roads are the largest
arteries and veins while unclassified/residential are the capillaries.

hope this helps.


On Fri, Jan 22, 2010 at 7:49 PM, maning sambale
<emmanuel.sambale at gmail.com>wrote:

> Hi,
>
> With the advent of more sat images outside Metro Manila I would like
> to re-visit this discussion regarding road classes in rural areas.
> As Eugene discussed below, rural roads are different.  I think we
> should use the track and tracktype tags for most rural roads.
>
> http://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack
> http://wiki.openstreetmap.org/wiki/Key:tracktype
>
> As for highway=unclassified, I don't see this of much use in the
> Philippines.  Unclassified is a legal UK road type and not some road
> we don't know the proper class.
>
> Unclassified
> "No administrative classification. Unclassified roads typically form
> the lowest form of the interconnecting grid network.
> Note: This is not a marker for roads where we still need to choose a
> highway tag (see highway=road for roads that require classification).
> "
>
> For people tracing from sat images but are unsure of the actual road
> type please use highway=road
>
> For comments.
>
> cheers,
> maning
>
> On Mon, Aug 3, 2009 at 11:59 AM, Eugene Alvin Villar <seav80 at gmail.com>
> wrote:
> >
> > I suggest that the tags for
> highway=trunk,primary,secondary,tertiary,unclassified be considered as a
> function of traffic patterns and not of DOTC designation nor physical
> appearance or condition.
> >
> > These values should also be considered relative to local traffic
> patterns. This means that levels will be different in an urban and rural
> setting: a trunk in Metro Manila does not have to be equivalent in function
> to a trunk in Nueva Vizcaya.
> >
> > Here are some descriptive interpretations I might suggest (subject to
> discussion):
> >
> > trunk (rural) : long-distance route to traverse across provinces
> > primary (rural) : mid-distance route to travel between towns in a
> province
> > secondary (rural) : major streets within rural towns
> > tertiary (rural) : major streets within areas of rural towns
> > unclassified,residential (rural) : other roads in rural towns
> >
> > trunk (urban) : long-distance route across the metropolis
> > primary (urban) : major road within a metropolitan city
> > secondary (urban) : mid-level road within a metropolitan city
> > tertiary (urban) : minor road in a metropolitan city
> > unclassified,residential (urban) : other roads in metropolitan cities
> >
> >
> > I'll admit that I have no fixed idea as to how to tag roads such that
> relative functional importance within Metro Manila (Cebu, Davao) is
> consistent when you get outside Metro Manila (Cebu, Davao).
> >
> > The problem is that in urban areas, the road density is so high such that
> we need to differentiate the roads a lot, whereas in rural areas, the
> density is low.
> >
> > For Metro Manila, EDSA and *parts* of C-5 are definitely trunk.
> Commonwealth, Quirino (QC) and McArthur Highway are arguably trunk. Quezon
> Avenue-Espana, Aurora-Marcos Highway, Ortigas-Ortigas Ext., Quirino
> (Manila), and Roxas Blvd are not so clear.
> >
> > What do you guys think?
> >
> >
> > On Mon, Aug 3, 2009 at 10:22 AM, <anthony.balico at neraphil.com.ph> wrote:
> >>
> >> Pardon my ignorance, but how do you classify road types?
> >>
> >> In the case of Mindanao Ave compared to Quirino Highway, apparently the
> former is a wider road so i reclassified the.
> >>
> >>
> >> Anthony
> >>
> >>
> >>
> >>
> >> From: maning sambale <emmanuel.sambale at gmail.com>
> >> To: talk-ph at openstreetmap.org
> >> Date: 08/03/2009 10:06 AM
> >> Subject: [talk-ph] changes of raod types
> >> ________________________________
> >>
> >>
> >> I'm not objecting but I'm somehow curious about recent
> >> reclassifications of several major roads lately:
> >>
> >> 1.  Portions of Commonwealth from trunk to primary:
> >>
> http://www.openstreetmap.org/?lat=14.66209&lon=121.06976&zoom=15&layers=B000FTF
> >>
> >> 2. Mindanao Ave from primary to trunk:
> >>
> http://www.openstreetmap.org/?lat=14.67085&lon=121.03234&zoom=15&layers=B000FTF
> >>
> >> 3.  Some parts of Quirino are either primary or trunk:
> >>
> http://www.openstreetmap.org/?lat=14.69974&lon=121.03273&zoom=15&layers=B000FTF
> >>
> >> 4.  MacArthur Hiway from primary to trunk:
> >>
> http://www.openstreetmap.org/?lat=14.6755&lon=120.982&zoom=15&layers=B000FTF
> >>
> >> If we follow this trend, then I think Roxas Blvd should also be trunk as
> well:
> >>
> http://www.openstreetmap.org/?lat=14.53551&lon=121.00028&zoom=15&layers=B000FTF
> >>
> >> Which means Metro Manila roads will be a whole lot greener (in the map
> >> at least).
> >>
> >> PS. Apologies for non-manila members
> >>
> >>
> >>
> >> --
> >> cheers,
> >> maning
> >> ------------------------------------------------------
> >> "Freedom is still the most radical idea of all" -N.Branden
> >> wiki: http://esambale.wikispaces.com/
> >> blog: http://epsg4253.wordpress.com/
> >> ------------------------------------------------------
> >>
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> >>
> >>
> >>
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> >
> >
> >
> > --
> > http://vaes9.codedgraphic.com
>
>
>
> --
> cheers,
> maning
> ------------------------------------------------------
> "Freedom is still the most radical idea of all" -N.Branden
> wiki: http://esambale.wikispaces.com/
> blog: http://epsg4253.wordpress.com/
> ------------------------------------------------------
>
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