[OSM-talk] [Tagging] - RFC - Motorway_link implies oneway=??

[Alex Mauer]

Ben Laenen wrote:
>> There are three options:
>> 1. make no assumptions: This means every single motorway_link needs
>> to have a oneway=yes or oneway=no (or oneway=-1).  A pain for
>> taggers, and doesn't help makers of routing applications who still
>> need to handle the case where there is no oneway tag.
> 
> Given the changing implication of oneway=yes this is actually the only 
> option left -- like it or not, painful or not -- since they could be 
> added by people who read that it was implied and by people who read it 
> wasn't.

Nah, it's not that bad.  It just means that the only data currently in 
there is built on the following:

Either the person assumed there was no implied value for one-way, in 
which case they would have explicitly tagged all of them.

Or they read that oneway=yes was implied, in which case they would have 
only tagged the oneway=no and oneway=-1.

-Alex Mauer "hawke"