Roller Coaster Design Concept - Feedback

Hello Everyone,

I am new to this forum. My name is Pratik and I am posting here from the UK. I am currently doing a Team Engineering roller coaster project for my Masters.

Me and three of my team mates are currently in process of designing a roller coaster. It is basically a design concept and would love to hear your feedback on our design concept.

We are aiming to design a duelling roller coaster with four independent tracks.

Here is a brief explanation of the roller coaster design.
2 stations
4 close loop tracks
Underwater sections - 2 per track
features include - helix drop, corkscrew, clothoid, barrel roll, banked return and humps
fly-by x2 car on the corkscrew, clothoid and return underwater
fly-by x4 car on the barrel roll underwater

Please see attached photos.

Any feedback and comments are greatly appreciated.

Thank you very much.

Sorry guys, struggling to uplaod images.

You can upload to a photo sharing website and then link them here if that is easier for you.

Any update on this? I'm fairly interested to see what some graduate students can do with their collective engineering knowledge.