Here is a construction-kit for ks railway signals with 157 parts to customize your own railway signal (180.000 polygons).
PBR-Textures in 8k res.
There is also a set of optimised railway signal parts for shadeless use. One texture for everything!
Interesting for mobile games or for applications how do not need PBR-Textures.
Modeled and textured in Blender-2.8.