Train Traffic Light 22 3D model is available on CGTrader for $29. Original author: dragosburian. Specs: 10000 polys, 23000 verts.
BLEND (Blender, filesize: 69.1 MB), OBJ (OBJ, filesize: 46.5 MB), FBX (Autodesk FBX, filesize: 47.3 MB), DAE (Collada, filesize: 46.6 MB), TEXTURES (Textures, filesize: 46.7 MB), PNG (PNG, filesize: 46.7 MB), STL (Stereolithography, filesize: 336 KB)