Video made by Motiontales (http://motiontales.nl).

The roller coaster is EV3 powered, it uses a color sensor for sensing the arrival of a train and then initializes the Mindstorms program loop.

3D model of the basic track structure:    • Lego roller coaster 3D model of the n...  
3D model of a train car:    • Lego rollercoaster: 3D model of car  

Visitors are being sent on a mission to an alien world. After they get launched into space they orbit a potentially interesting planet and initialize the landing. Once landed they find a dangerous world with enormous monsters. A giant sand worm eats them at the end of the ride.

More LEGO roller coaster MOCs on our channel.