I just updated Multiple streets with the same name are grouped as one with a note on this, but 
this thread is probably the better place to have this conversation.
I’m working on a fix for this, which revolves around splitting streets wherever the underlying Way records no longer share a Node ID. When several Way records actually form a street, the data will be along the lines of Way A having Nodes 1,2,3 and Way B having Nodes 3,4,5 - it’s that shared Node 3 along with the same name tag that identifies itself as a single street.
In my local testing I’ve noticed a number of OSM edits need to be made afterwards - and this is in my smaller 300-500 street cities. Overall, these have been good edits that improve the map … but it still is editing work, and will likely confuse some people along the way.
The most common edit I’ve seen so far is that small connecting Way records around a roundabout need to have a name added (example & example).
Another common way that streets get split up is when they’re weirdly disjointed, like this section & this section … In the updated code, those will exist as two separate Arlington Street records in CityStrides.
So, I currently see two factors in the result of this change:
- There will be edits required to re-join streets that should be a single street … these will mostly be adding the name to various Way records
- There will be some streets that are split into two even though the separation is not so drastic