Brian Prangle wrote: > My problem is how to tag the direction of flow. The oil pipeline markers > have the direction of flow indicated on them ( gas ones don't). I've > tagged the pipelines as oneway=yes which results in mapnik rendering > little blue arrows in the countryside. Whilst this is to me ( who's > mapped them) a good indicator of the presence of a buried pipeline it > will probably be meaningless to any one else. Any opinions out there?
Contrary to what everyone else has said, I'd disagree that oneway=yes is correct. When added to roads, this has a meaning of "it's only legal to for a vehicle to travel in the prescribed direction along this way", rather than it being a physical property. You *could* drive the wrong way along a one-way street, but in contravention of the law of the land. The laws governing the pipeline are those of physics, which are notoriously harder to break. I'd say tagging as a pipeline makes the flow implicitly one way, and you should make sure the way points in the direction of flow (which it appears you have). Rendering is just a side issue :) -- Jonathan (Jonobennett) _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb

