[OSM-talk] Cycleways and Access tags: Left, Right, Forward, Backward?

[Richard Mann]

Off-carriageway tracks tend to be bidirectional (they all are in the UK).
So no-one would bother to use bidirectional_track.

Richard


On Fri, May 18, 2012 at 1:56 PM, <rob.j.nickerson at gmail.com> wrote:

> Arg, thats still not right is it? Firstly it leaves 2 values for
> cycleway:left and also the opposite_track is not quite right because if it
> had been on the right hand side of the way (but the way was still
> orientated in the same direction) you would have to use
> cycleway:right=opposite_track to imply that the cycle track flows in the
> same direction of the traffic closest to it (i.e. the traffic on the right
> that is going in the opposite direction of how the way is drawn).
>
> Maybe it should be "The track may be cycled in the opposite direction of
> other traffic using the same side (i.e. right / left) of the road"
>
> Finally the talk page has a good suggestion to use
> cylceway:left=bidirectional_track but this has no uses according to tag
> info.
>
> Rob
>
>
>
> On , rob.j.nickerson at gmail.com wrote:
> > Oh, I think I get it now. So for example if you had a cycle route that
> runs parallel to a road (but not within the road carriageway), is on the
> left side and allows cycling in both directions it would be tagged as:
> >
> > * highway=*
> > * cycleway:left=track
> > * cycleway:left=opposite_track
> >
> > If this is correct that the wiki could do with the definition changing
> so that opposite_track reads "The track may be cycled in the opposite
> direction to the way", with an explanation of how a way is essentially an
> arrow.
> >
> > Regards,
> > Rob
> >
> > p.s. Sorry for the large number of emails on this. Am trying to get
> things clear in my mind!
> >
> >
> >
> > On , rob.j.nickerson at gmail.com wrote:
> > > Are there any cases of that?
> > >
> > > Wouldn't you assume that the cycle lane is on the same side as the
> flow of traffic (so forward would imply left in GB)? Surely the same
> argument can be made that cycleway:left tells you which side of the road it
> is on but doesn't tell you the direction of flow.
> > >
> > > Rob
> > >
> > >
> > >
> > > On , Ed Loach ed at loach.me.uk> wrote:
> > > > Imagine a two way road with a cycleway on one side. Neither forward
> or backward tell you to which side of a way the cycleway is – this would
> only tell you if it were in the same direction as the way, rather than on
> one side of it. So forward, backward, left, right all have their places. Ed
> > > >
> > > >
>
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