What are the advantages of underwater trains?

The train plunged into the vast ocean like a submarine, and the passengers in the carriage suddenly calmed down. A few minutes later, the shocked passengers found themselves in a wonderful underwater world. All kinds of beautiful fish flashed by the window, and huge coral reefs appeared in front of people from time to time, and people cheered.

The amphibious train under design has a speed of 200 kilometers per hour on land and 80 kilometers per hour at 30 meters underwater.

When the train travels fast in the water, it will inevitably encounter the resistance of the sea. Therefore, scientists decided to build an elevated monorail underwater, so that the underwater train can travel safely on the specially-made elevated monorail. The train is equipped with stabilizers in vertical and horizontal directions, which can keep the train stable when driving in deep water.