<p>FYI. This rendering is very useful for rural areas and perhaps to monitor DPWH road projects. ;)</p>
<div class="gmail_quote">---------- Forwarded message ----------<br>From: "Jean-Guilhem Cailton" <<a href="mailto:jgc@arkemie.com">jgc@arkemie.com</a>><br>Date: Dec 20, 2011 11:12 PM<br>Subject: [HOT] "OpenUnpavedStreetMap", "South continents", Colombia, soon Philippines<br>
To: "HOT" <<a href="mailto:hot@openstreetmap.org">hot@openstreetmap.org</a>><br><br type="attribution">Hi,<br>
<br>
Knowing whether a road is paved or not is an important information for a<br>
driver, especially in countries where many roads are unpaved. This<br>
information can be entered in the OSM database with the surface tag [1],<br>
but it is not currently rendered in the main maps available on <a href="http://osm.org" target="_blank">osm.org</a><br>
[2]. Seeing it rendered on a map would likely be an incentive for<br>
mappers to use it, especially beginners.<br>
<br>
A map with a rendering for this, OpenUnpavedStreetMap, is now available<br>
for Africa, Central and South America, Australia-Oceania (according to<br>
Geofabrik's definition, which includes Indonesia and Malaysia), and soon<br>
several Asian countries, including the Philippines (actually the<br>
countries available as extracts from GeoFabrik, China, India, Pakistan,<br>
Vietnam, etc.except Japan - considering dataset size). Surfaces tagged<br>
as "compacted", "gravel", "sand", "dirt", "earth", "ground", "grass",<br>
"mud"... are also considered as "unpaved", following the wiki page.<br>
<br>
Examples from areas that may be of interest on this list:<br>
<br>
- Port-au-Prince, Haiti:<br>
<a href="http://osm.arkemie.org/haiti/?zoom=17&lat=18.60871&lon=-72.28598&layers=B0" target="_blank">http://osm.arkemie.org/haiti/?zoom=17&lat=18.60871&lon=-72.28598&layers=B0</a><br>
<br>
- Kigali, Rwanda:<br>
<a href="http://osm.arkemie.org/ousm/?zoom=16&lat=-1.95416&lon=30.08243&layers=B000F" target="_blank">http://osm.arkemie.org/ousm/?zoom=16&lat=-1.95416&lon=30.08243&layers=B000F</a><br>
<br>
- one of the examples given by Douglas, in Kampala, Uganda:<br>
<a href="http://osm.arkemie.org/ousm/?lat=0.38093&lon=32.55812&zoom=18&layers=00B0T" target="_blank">http://osm.arkemie.org/ousm/?lat=0.38093&lon=32.55812&zoom=18&layers=00B0T</a><br>
<br>
- A page for Colombia, with markers for the GeoRSS feed from la Sala de<br>
Situación Humanitaria Colombia:<br>
<a href="http://osm.arkemie.org/ousm/colombia/" target="_blank">http://osm.arkemie.org/ousm/colombia/</a><br>
<br>
<br>
Following Humberto's suggestion, flood_prone areas are also rendered<br>
("flood_prone=yes" or "flood_prone=label"):<br>
<a href="http://osm.arkemie.org/ousm/colombia/?zoom=16&lat=10.39717&lon=-75.15048&layers=B000FT" target="_blank">http://osm.arkemie.org/ousm/colombia/?zoom=16&lat=10.39717&lon=-75.15048&layers=B000FT</a><br>
<br>
Following a suggestion from Federico, and a need that had also appeared<br>
for Haiti, next step should be rendering of POIs relevant for<br>
emergencies, such as health facilities, at lower zoom levels.<br>
<br>
<br>
The global URL is:<br>
<a href="http://osm.arkemie.org/ousm/" target="_blank">http://osm.arkemie.org/ousm/</a><br>
<br>
OSM.org Mapnik layer is in the menu for easy comparison on the current<br>
area. A "hybrid map for mappers" - and for soon-to-be mappers who can<br>
see what might be missing on the map ;) - is available by overlaying a<br>
transparent version of OpenUnpavedStreetMap with Bing aerial imagery.<br>
Google satellite imagery is also available as a reminder, by comparing<br>
imageries location, that it is often advised to adjust Bing offset<br>
before tracing.<br>
<br>
The database is updated at least daily, and minutely for the next days,<br>
after the new coverage will have been imported.<br>
Tiles are available from<br>
<a href="http://osm.arkemie.org/ousm_tiles/${z}/${x}/${y}.png" target="_blank">http://osm.arkemie.org/ousm_tiles/${z}/${x}/${y}.png</a><br>
<a href="http://osm.arkemie.org/ousm_transparent_tiles/${z}/${x}/${y}.png" target="_blank">http://osm.arkemie.org/ousm_transparent_tiles/${z}/${x}/${y}.png</a><br>
The current bandwidth is limited, but if you are interested, let me know.<br>
<br>
<br>
Let me know what you think, and if there are features that would be<br>
interesting for a custom rendering.<br>
<br>
Best wishes,<br>
<br>
Jean-Guilhem<br>
<br>
<br>
[1] <a href="https://wiki.openstreetmap.org/wiki/Key:surface" target="_blank">https://wiki.openstreetmap.org/wiki/Key:surface</a><br>
[2] <a href="http://trac.openstreetmap.org/ticket/1447" target="_blank">http://trac.openstreetmap.org/ticket/1447</a><br>
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