[Tagging] Counterflow Lanes

[Nathan Edgars II]

On 2/19/2011 4:33 PM, Paul Johnson wrote:
> A better example would be the George Massey Tunnel on 99, which omits
> the oneway= tag completely on both motorways in the contraflow sections.

According to the wiki, highway=motorway* implies oneway=yes (meaning 
it's always oneway in the drawn direction), so you'd need a oneway tag 
to override this. But oneway=no is incorrect; oneway=reversible is a 
reasonable replacement when it's sometimes oneway=yes, sometimes 
oneway=-1, and maybe sometimes oneway=no. Other tags could then be used 
to indicate when it's oneway in which direction (if the times are fixed).