These count as "Lego Extreme" tracks, which basically means that the authors built the base in the Track Editor and then remodeled them in 3D modeling software such as Blender (with the Re-Volt Add-On). In the past, authors used various tools such as ZModeler, RV-Glue and a whole lot more that I can't remember, but you can probably achieve all of that nowadays with Blender.
It's possible that some of them made use of certain PRM kits, but I can't find any Lego-themed ones so far. In my opinion, you're probably better off just remodeling the various blocks yourself. As for the lasers and all other instances, they can be added in-game by accessing dev mode.
Getting into advanced track-making like this can get a bit complicated, and you'll probably have a lot of questions that are not covered by the tutorials we have. If you think you'd like to give it a go, I recommend you join our Discord server—you can get live help that way.
The Re-Volt Network