2. You need to be especially careful with flyovers for `=street` . Many of them don't have gazetted street names. They won't have street name signs. The street name signs will appear for ground level only. I believe this is the case for Kowlooon City Roundabout. They only have `name=` for routing or common sense (which can still be doubted as there other possible names for them), or to improperly fix warnings. So they might only be included in the `=highway` . 