Tagging for Tram Lanes Separation

Hello everyone,
I guess German community is the most experienced when it comes to public transit and tram lines.

I need to tag how tram line is isolated from car traffic. In Russia, it is a serious problem that in many places trams runnig together with car traffic get stuck in congestions. So we have a project that calculates how many dedicated lanes exist, and one thing we want to be able to mark is whether tram rails are together with car traffic or not.

I see there are several situations that we need to distinct:

0. No separation, cars disrespect trams.

1. Tiles that make riding here bumpy uncomfortable

2. Formally dedicated with white lines, and probably there's a camera that registers rule violation. Still not always guaranteed that all car drivers respect this, as in the picture.

3. Protection by kerb

4. Isolation by barrier.

5. Surface impractical to ride. Means almost no cars, except in case of accident.

6. But in some cases, impractical surface is combined with barriers.

I see there are 2 things to indicate:
1) surface around the rails, whether it's rideable, inconvenient, or not rideable at all.
2) protection: none, formal by lines & cameras, or kerbs, or barriers.

I wonder what tags are used in Germany for this? On the wiki, there's nothing in this regard.