I did some work and research on it.  Although I'm really unsure about the surface tags.

Here's some useful links:

Township Website with some video info.
https://gibbsborotownhall.com/bike-trailway/

Facebook Group
https://www.facebook.com/groups/1282553711804176/

Map with some Names
https://gibbsborotownhall.com/wp-content/uploads/2024/04/Bikeway_Map_February_2023.pdf