[Rebelgecko]

The paint they use on the streets has equivalent or better traction than the asphalt. That's why there hasn't been a huge increase in cyclists falling over when the bike lanes get totally filled in with paint (e.g. the first one here: https://www.losgatosca.gov/DocumentCenter/View/20028/Green-b...)

[josephcsible]

You're assuming that these will use the same paint that legitimate crosswalks do.

[Rebelgecko]

Yes, but considering that's what their own guide says to do I think that's a fairly safe assumption.