How can I search for good spots to ride on inline skates / rollerblades?

Question

How can I search for locations with a smooth surface where I can ride my inline skates? What sources or methods can I use?

Context

I recently picked up inline skating and noticed that the road surface makes a huge difference in the pleasure I get from skating.
I have a park nearby that has wide, asphalt roads with no car traffic, which is perfect.
To keep things diverse I would like to look for other spots with similar characteristics, i.e.:

• smooth surface, e.g. maintained asphalt or large concrete slabs
• little motorized traffic
• wide paths

What I’ve tried

• I checked Google Maps satellite view to see if I could identify smooth roads. That appears to be hit and miss, as some path look smooth but actually aren’t and some paths (e.g. the one I ride on in the park) are obscured by folliage.
• I tried looking for rooftop parking garages. Unfortunately the ones in my neighbourhood don’t have a smooth surface.
• I tried using Overpass Turbo queries to search for smooth ways in my neighbourhood. However, I have not yet found a helpful combination of query conditions.