Hektometerstein

Waiting for my train to arrive I blipped this Hektometerstein in Kaiserslautern's train station.

What I found in the net about it:
It's km 43,70 of the distance Homburg (Saar) 8,3 - Kaiserslautern 43,70 - Ludwigshafen Hbf 106,535, State border Pfalz/Hessen 125,10 = (km 0,0 - Worms 3,21 - Mainz Hbf 49,09)
And not really sure what I'm taking about.......emergency blip again.

19:05; 11°C