Train Traffic Light Weathered 16 3D model is available on CGTrader for $29. Original author: dragosburian. Specs: 10000 polys, 23000 verts.
Native Formats: BLEND (Blender, filesize: 38.5 MB)
Exchange Formats: OBJ (OBJ, filesize: 16 MB), FBX (Autodesk FBX, filesize: 16.1 MB), DAE (Collada, filesize: 16 MB), STL (Stereolithography, filesize: 310 KB)