I did this:
- went to http://commons.wikimedia.org (I use Commons French interface)
or either clicked on any image in the article and then followed the link to the image description page on Commons
- typed in "sens unique" in the Commons search box
- this led me to
http://commons.wikimedia.org/wiki/Special:Search?search=sens+unique&go=C...
The first item of the list seems to be the good one :)
Hm... that would be http://commons.wikimedia.org/wiki/Image:Sens_unique.JPG - niced find, but the sade fact is: that's an orpahn! no categorization, no gallery :( we have way too many of those.
also, hoping for an image description in fresh to be picked up by the full text search is quite a gamble. compare http://commons.wikimedia.org/w/index.php?title=Special%3ASearch&search=%22one+way%22+&ns0=1&ns4=1&ns6=1&ns14=1&fulltext=Suchen.
I would like so much to have a language-neutral search on commons. And I know how to build it, too. Also, the OmegaWiki people are working on something like this. Let's hope for the best.
-- daniel