How do you tag a highway=residential with oneway=yes and cycleway=lane, but on that cycleway you can go both ways with the bike?

Like the one on this image: http://www.flickr.com/photos/enbicixbcn/4087718970

Later edit:

# car use(2lanes): =========>
# bike use <--------------
# bike use --------------->

http://rax.tumblr.com/post/233811853

Main goal is to map the area between: Rambla del Brasil - Av. Madrid - Juan Guell - C/Sants.
I may go further to: Juan Guell - Av. Madrid - Numancia/Tarragona - C/Sants.

Sources: my GPS traces and Yahoo! aerial images.
Tools: bike, AMOD AGL3080, JOSM/Potlatch.