Port Rails

The space station known as Port Rails lives in a geostationary orbit above the

Port Rails space station viewed from below.
capital city (around 36,000 kilometers) and is the terminous of the space elevator. It is an enormous (2 kilometer diameter) dinner plate spinning with the bottom towards the planet, and the top away from the planet. The disc is 200 meters thick. The cable for the space elevator rises from just outside the capital city, through the central hub of the station and continues for 500 meters past the station to connect to the counterweight.

The disc has 70 floors, numbered 0 through 69. Floor 0 is at the outer edge of the disc. Floor 69 is just below the outer edge of the hub. Because the disc spins at 1 revolution per minute, the centripetal force generated at the outer edge (floor 0) is 1g, and it decreases as you travel from the edge of the disc towards the hub. On the highest floor, floor 69, the centripetal force generated is only 0.3g.

Each floor is separated into 24 sectors, number 0 through 23. There are 24 sets of lifts evenly spread around the disc, at the center of each sector.

Port Rails space station with a space tug maneuvering to dock at the hub.
At the center of the disc is the hub, which is 300 meters in diameter and 500 meters thick. The hub does not spin like the disc, so the entirety of its volume is essentially at 0g. This is where the terminous of the space elevator is, and where storage of bulk materials and manufacturing that requires 0g happens, as well as easy docking for shuttles and ships.

Passengers and cargo can get to Port Rails from Gaia into space by using the space elevator, which is tethered to the planet near the capital city at the elevator "Down Terminal."

Passengers boarding the elevator car at the Down Terminal can find comfortable seating with a magnificent view of the planet, or can pay for a sleeper cabin. The trip takes 30 hours, with the elevator car quickly accelerating to over 1200 km/hr for the trip.