Oval Roller-Skating Track

Create an oval roller-skating track as one connected solid model. Overall outside dimensions: 105 feet long by 57 feet wide. Track width: 12 feet. The oval must have two straight sections connected by two semicircular ends. Add smooth banking across the entire track width. The inside edge of the track should be the lowest point, and the outside edge should be 3 feet higher than the inside edge. Use one simple, continuous linear slope from the inside edge to the outside edge. Keep the banking consistent around the entire oval, including the straight sections and curved ends. Do not twist or change the banking angle. Make the track surface 6 inches thick, measured perpendicular to the sloped surface. Add a continuous 3-foot-high safety barrier along the outside edge. The barrier should follow the oval and remain perpendicular to the track surface. Keep the geometry simple, symmetrical, solid, watertight, and suitable for exporting as STEP or OBJ. Do not add supports, railings, textures, decorations, or small details.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.