Hi Sven,
so that if the original way doesn't already have the bicycle routing defined, it will be disallowed.
Ah, nice!
I have put out a new patch that does that.
There is another thing I found looking at the code.
As far as left and right tags are concerned one should create a one-way cycleway only.
right: cycleway with oneway alongside the original way left: cycleway with oneway in opposite direction of the original way
*argh* while thinking about this it gets more complicated:
The side of the road where you need to drive will get important in this case! The above example is only valid for countries where you drive on the right :(
Most people do drive on the right, surely that's good enough!
I did not find a tagging example where one-side cycleways are allowed to be used either way. I would suppose they should be tagged cycleway=track
To explain this (also a german rule). One-sided cycleways are usually permitted to be used in one direction only (the driving side) if the traffic signs are not explicitly positioned to be readable from both directions.
That's a subtlety that we can't really cope with.
I conclude that this left/right stuff is flawed, this should rather be something like "direction" and "opposite direction" to make it independent from country specific driving directions.
Perhaps you should point that out to those who are proposing these new tag values.
Finally I think we should not consider these tags for now.
Well, the code will still recognise left/right/both as well as track/lane and they all do the same thing. Cheers, Mark