Here's the problem: Those white striped bike lanes do little to prevent some drivers from tearing into the lane. Even the lanes with different colored pavement, like on Hennepin Ave., can't keep the police from using it as a parking spot. Here's possible solution: zebra dividers.
They have nothing to do with mussels.
The ZEBRA, is a black oval plastic piece that is fixed to the floor on the line between the road and the bicycle path to avoid motorbikes and cars from entering. The white irregular stripes make it highly visible and quite an attractive piece. Zebra is very durable, low-maintenance and non-slippery.*via