a distant view of the scheme, including the small airtight villages and their connected tunnels containing the high speed trains - all sat at the bottom of the ocean.

A perspective cut of people inside the future train and its tube along the sea floor.

A look at the individual trains themselves and the advancements in aerodynamics to prevent air resistance and increase speeds.

For my high speed trains that travel along the sea bed I will need advancements in water hydraulics and valves used at extremely high pressure. However, my future technology is the vac train - a airless tubular tunnel that the trains run through at thousands of miles per hour.

My scenario is set in the future when climate change and extreme weathering have taken place and the earths surface is too dangerous to live on so everyone lives underwater.

My first film precedents page. Using Sci Fi films to come up with our own futuristic example.