OpenStreetMap

intentionally got "lost" from QC to Makati

Posted by backpacking philippines on 18 January 2011 in English (English)

i again tested routing from Trinoma to Makati but intentionally passed by other roads en route to makati and discovered other errors

as i took Quezon avenue, OSM wants to route me to Espana (instead of Araneta Avenue) then Forbes (lacson) but i noticed an oddity where it wants me to turn right to Vicente Cruz (which I know should have turn restrictions) when i checked out the suggested route while waiting for the green traffic signal. I checked out Sampaloc area today and found out missing turn restrictions and one-way tags (my being a Sampaloc-resident for 10 years made me very knowledgable in the area though i noticed lots of changes to the establishments.

back to araneta, there may be an incontinuity there somewhere along victoria (will correct this). I used F Manalo instead of the suggested v mapa.

i took acacia lane from Shaw Blvd and wanted me to use Nayon ng katipunan (which is really almost impassable due to it's being full of pedestrians, the road usually taken should be F Ortigas going to P Cruz then Boni.

i was elated though when I passed by JP rizal and into San Miguel Village and Bel-air. Months ago i changed their tags to "access=yes" even if they're private roads and routed splendidly

the last wrong info I got was a left turn from Buendia to Tordesillas (no left turn) and should take Zuellig loop. after that routing was ok to my destination with properly tagged one-way roads

I should probably learn to use at least JOSM if i want to add those turn-restrictions myself :P

Comment from zmonkey on 18 January 2011 at 09:08

Turn restrictions are a block for me as well.
Do we have to split the ways at a node, so an intersection has 4 ways coming out of a node to add a turn restriction?
I clicked on a node, and tried the turn restriction button, but none of the ways were listed in the turn restriction... or am I just unlucky with 'clicking it wrong'?

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Comment from ianlopez1115 on 18 January 2011 at 12:32

It can be done in Potlatch. See http://wiki.openstreetmap.org/wiki/Relation:restriction for more information.

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Comment from zmonkey on 18 January 2011 at 22:12

I was using potlatch. They should make it clearer that you can only work with endpoints of ways.

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Comment from backpacking philippines on 19 January 2011 at 01:50

hmmm...i will try it one of these days particularly the buendia/tordesillas corner to check then i'll let you know. i will also learn JOSM, but my lazy side's preventing me. it's also been a while since i booted Matte to linux (Matte: my dual-boot notebook)

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Comment from backpacking philippines on 19 January 2011 at 02:08

alexz, so it's with potlatch2...i will explore it later. I can see the turn restrictions on potlatch but can't create/edit at least it's now with potlatch 2...lazy me hehe

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