I'd love to see a concrete example if you have one. I've seen a fair number of people make this claim about bicycle infrastructure and without a fault there's a

I'd love to see a concrete example if you have one. I've seen a fair number of people make this claim about bicycle infrastructure and without a fault there's an obvious-to-a-bicyclist reason it doesn't get used. Of the pictures of recently built UK bicycle infrastructure I've seen most of them don't look particularly good.