To create a "bike facility" that does not meet certain basic minimum safety standards should be against the law.
Supposedly, bike paths and lanes are built for the safety of cyclists. But cyclists who try to use them often have a greater risk of injury or death than cyclists who use the road.
To create a "bike facility" is to tell people that they should ride there and that it is safe to do so. Anyone who is injured because of the safety hazards of any "bike facility" can look to it's builders
to share the blame.
Here are some examples:
1) Sand traps. Sand, gravel and other debris should never be present. If authorities cannot keep it clean, the "facility" should not be built.
2) Uneven pavement. Painting a stripe does not create a "bike lane." Cyclists, more than motorists, need a smooth riding surface
to ride safely with traffic. All bike lane pavement should be resurfaced before being painted.
3) Dangerous intersections. Bike paths built along city streets cross dozens of driveways or buisiness entrances. The high number of intersections raises a cyclist's risk of crashing with a car. Many of these also have shrubbery, signs or other things which block people's view, and the uneven pavement can throw a cyclist.
4) Mixing cyclists with walkers, runners and dogs. "Multi use" paths which mix cyclists with other users put all users in harm's way. Getting hit by a cyclist going 20 - 30 mph. can be fatal for both the cyclist and the person or animal hit. Even a slow-speed
crash can cause serious injuries.
5) Night use. In order for a "bike facility" to be safe and usable, it must be safe and usable 24 hours a day. If it must close at night, it is not safe.
6) Parking. Parking a car in a bike lane makes the lane unsafe and unusable. Parking beside a bike lane, but not in the bike lane, is extremely unsafe, because the cyclist may think it's clear to ride there.
7) Traffic flow. "Bike facilities" that disrupt normal traffic flow and create a special set of rules for cyclists are not safe.
8) Right-of-way. Yielding right-of-way protects people from crashing into each other. Design that creates the fewest places
where someone has to yield to another is the safest. The more yielding points, the more chances of a crash. The more often a "bike facility" causes cyclists to yield to the main body of traffic, the more unsafe it is.
These are just a few I can think of at the moment.