Designing 3-dimensional roller coaster loops by using uniform extended cubic B-spline / Muhammad Ali Adri Mazwin

Roller coaster is one of the attraction to the public. This research purpose is designing a smooth roller coaster loops using mathematics method which is B-spline method as one of the alternative in designing a smooth roller coaster loops. This research is using extended cubic B-spline method with degree 4, 5 and 6 with A.=0.5, 1 to design 2- Dimensional and using sweep surface translation method to design 3-Dimensional roller coaster loops. The G force value from each loops design are calculated to compare in order to determine the best Roller coaster loops design. The result from this research shown that by using extended cubic B-spline method with degree 5 and X=0.5 is the best way to design roller coaster loops because it has the most accurate G-force value with the real roller coaster loop compared to others.