There are 3 files:
2TrafficLights+textures (2).zip 106 MB
SequenceTextures.zip 446 MB
TrafficMess_005-BM.blend 79.4 MB

• If all you need is just the two traffic lights, download: 2TrafficLights+textures (2).rar
• If you want the animated sequence of the running human or the idle one, download: SequenceTextures.rar
• For the scene from the cover photo, download: TrafficMess_005-BM.blend

Instructions:
To switch between the lights you just have to select the main box of the model and change the number in its properties panel. To change the type of lens mask' just select the lens, go to the color texture in the shader, and choose another texture or image sequence.
You can watch the video demo to see this properly.

All paths in the Blend files are relatable, so you just need to put the Blends along side the "textures" folder, if it's not already the case.
If for some reason it doesn't work, just use "find missing Files" to the "textures" folder.
For the sequenced texture - unfortunately, you have to do this manually, since Blender handles sequence textures not so well as assets.

If you want to play around with the scene featured on the cover of this product (The splined traffic lights) you need to download everything,  open "TrafficMess_005-BM.blend" alongside the "texture" folder that comes within "2TrafficLights+textures (2).rar", and to unpack "SequenceTextures.rar" content into the "texture" folder.
*Also - you need the latest Animation Nodes add-on to mass switch the lights automatically.
Specifically: https://blender.community/5cfaaa6f5996560e73217d23/download/5d10251259965672af24855d