The perfect thing for a bike lane?

Ok, it's been dead around here again.  Pretty much that means work is taking up too much of my time.  Sorry about that....but it's not gonna be much better this week. 

Anyway, here's something I saw out in Arches National Park (which seems like forever ago).  It's not amazing or mind blowing, but it sure is practical at keeping cars where they belong (e.g. in the lane they are supposed to be driving in....and not the bike lane)!

I realize that in the picture this is just used to keep cars on the road (and off the gravel where pedestrians walk), but think of the potential!!  What if everywhere there was a bike lane striped they had these suckers instead of just a painted line!  I know you'd have to have breaks so bikes could enter and exit the lane, but the protection from a driver mindlessly drifting into a bike lane would be invaluable!

Anyway, think about it.....would you like this idea or not?  I'm thinking of proposing it to the RTC at the next BPAC meeting.