Barrier has correct pivot and can be easily rotated
Lights made with VRayLight. They are realistically animated. You can turn them off.
Centimeter units are used. No ngons. All objects at 100% scale, placed at (0,0,0) origin. No subdivision used.
All objects are in 'Railway_crossing' layer. No cleaning up necessary. Turn off 'environment' layer, add model to your scene and start rendering. 'environment' layer contains HDRI lighting to render as on thumbnails.
Model uses VRayMtl materials. No multi/sub-object materials.