New design

I was doing solidworks of my original design on Saturday night. When I started doing dolly wheel part, I been looked up how to set up the wheel properly, then a image of roller coaster came up. It is somehow what i am after, because the position where it got track is where needed put camera in. Then I look up Youtube type in rail slider, a skateboarder slide down from the rail, which inspired me to stop making the track. Why not use whole lot track that are already there? Hand rail, deck rail. So we explore the city by how city builder wants us to.