Intermediate island in the North Sea

There are some investigations making an island as a place for a new airport in the Noth Sea. It needs a connection between Schiphol Airport and a new island called Satellite Island. Between the main land and Satellite Island there will be an Intermediate Island. To minimize the risk and maximize the efficiency instead of vehicles, trains are going to be used as means of transportation. Is focusing on making an immersed tunnel between te Satellite Island and the Intermediate Island continued with a bored tunnel from the Intermediate Island to Schiphol Airport. Two main topics are the dry dock part and the transition part.