Someone posted this in another thread and I thought it could use it's own.
14 ways to make bike lanes better (the infographic) | PeopleForBikes
I was quite surprised by a few of the ratings:
Stripped buffer - 3 stars for durability? In Minnesota they could be completely gone in 2 or 3 years. That's durable? They are also largely invisible throughout much of winter so a protection factor of about zero.
Turtle Bumps - 4 stars for protection? Cars will routinely drive over turtles.
Large Bumps - 5 stars for protection? The same level as K-rails (Jersey Barriers)? K-rails will keep a car from entering the bikeway, Large Bumps will not. There is also the issue of perceived protection. Would most people feel more comfortable protected by solid k-rails or these 'Large' Bumps?
Oblong Low Bumps (Armadillo) - 4 stars for durability? Doesn't happen. These things get ripped to shreds amazingly quickly—by cars driving over them. So much for those 3 protection stars.
Linear Barriers - 4 stars for protection? See Turtle Bumps. 4 for durability? see Oblong Low Bumps.
Rigid Bollards - Should be 4 for protection. They are not the same as K-rails or Jersey's.