[OSM-talk] How to tag oneway exceptions?

[Paul Johnson]

Ben Laenen wrote:
> On Sunday 26 April 2009, Tobias Knerr wrote:
>> Renaud MICHEL schrieb:
>>> I didn't find an answer in the wiki, how should I tag roads that
>>> are one way for motorized vehicles but two way for bicycle?
>> The documented and established way to do so is
>> oneway=yes + cycleway=opposite,
>> see http://wiki.openstreetmap.org/wiki/Key:cycleway
>>
>> The proposal "Conditions for access tags" allows to alternatively use
>> oneway=yes + oneway:bicycle=no
>> which is a bit more flexible because it is not limited to bicycles,
>> see
>> http://wiki.openstreetmap.org/wiki/Proposed_features/Conditions_for_a
>> ccess_tags
> 
> But bicycle:oneway=no is much more logical of course since you're 
> defining the access rights of bicycles...

I hope oneway:bicycle=-1 also works, if so, this is a much cleaner and
more precise way of tagging the rare street that is actually two way,
but prohibits cyclists in one direction and motorists in the other (and
perhaps provide automated warning for those who ride with a GPS).

This would be especially handy in Portland, Oregon where some minor
roads connecting major streets to bicycle boulevards occasionally have
this situation, as well as provide some kind of warning in a spot where
cyclists may not expect such an arrangement (one example would be how
OR-99/I-5 connects to Jantzen Beach by bicycle, where cyclists leaving
the cycleway for Jantzen Beach find themselves placed facing the wrong
way on a freeway onramp, even if the correct way to handle this is
slaughtering the civil engineer who thought up that half-baked interchange).

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