Bicycle boulevards, slow streets, 20mph, etc.

[trivisonno]

The default color for any street without any bike facilities is red, and the assumption is that it lacks safe space for people using cycles.

At certain speeds and traffic volumes, however, such as a 20mph street with very low AADT, does it still make sense to illustrate it with red? This might factor into the LTS use case, which is somewhat different than what this map is trying to illustrate (strictly the presence of constructed bike facilities).

Some cities have 20mph maxspeed limits city-wide. Do the metrics fairly represent the cycling infrastructure of these low-speed areas?