Each carriage would be as spacious as a large train carriage. Some would be gyms for maintaining muscle tone and bone density by exercising in normal earth gravity. Some would be medical and maternity facilities to ensure normal recovery and normal pregnancies. Some would have apartments and hotel suites. In a well established base there may even be livestock stabled in some carriages.
|Luna 7 Tracked centrifuge and ancillary buildings and domes. Most structures are deep underground in the lava tube network.|
Unlike a larger space station the train stops regularly to allow people to come and go. Warnings are given so none are caught out. Many internal structures are designed with a radical change of orientation. The direction of down changes through 60-90 degrees.
To generate one earth gravity the train must run at 239 kph an easy speed for magnetic levitation technology in vacuum or a thin atmosphere. Stopping and starting takes several minutes so there is time to find all the loose things lying around that may fall.
This orientation when stopped. There is a possibility that the table and counter top might tilt. This model was in Second Life. The crew sit in a lounge near the table not on the blue seats. there is provision for standing at odd angles in the shower behind the floral screen, in the toilet opposite and beside the camera (Note: in the top hab image you see a grey/ white deck with the writing on it and the green box. I'm standing on the box in the second image. Select the box and stand ).
The first unit on the moon however would be small as the second life representation of a small habitat shows. It has three bunks, a tread mill for muscle and bone fitness and would be on an above ground track. A separate solar flare shelter would be near the track or one section of the track would be covered.
A full sized flat car would look more like a luxury railway car.
I've also designed a free flying space station. This has the lowest mass to crew ratio of any design with centrifugal gravity.
The large dark thing on the right is a solar shield. This reflects the suns radiation away, provides some radiation shielding and a safe place for ships to dock. The station and the shield are linked by a pressurised cable car and perhaps a few long torsion spars. Sun light is provided by a steerable free flying mirror that give controllable day length and temperature control (black ellipse above. Your seeing the back of the mirror ). This structure would support 5000 people with some farming or gardening in the carriages and smaller centrifuges.
Here's another design. This unit might support 3000 people. It would have the same shield and mirror technology as the sphere.
Most people don't know that plants have been grown successfully in zero g on the various space stations. Plants like gravity but a few days as a seedling in a small fast centrifuge will suffice. Plants don't get dizzy.
Plants on the International space station.
In case your worried about radiation hazards all the banked track systems on the moon, asteroids and space-stations are either burred in the ground or armoured with a high mass non-rotating shell around the track itself. There would be provision to move planter pots and whole garden beds into shelters under the domes and inside larger solid structures.
This technology will allow people living in space to have gravity when they need it and zero g for fun and research. Short exposures to normal gravity daily prevent bone calcium loss. By designing the cars to be used for about half the day time hours would suffice. Short periods of zero gravity should not harm anyone including embryos. Though that needs to be checked.
While these space stations will never look like a chunk of earth transplanted into space, like the illustration below, they will be adequate and interesting.
First illustration, the luxury train cars and the one above are from the web. The Third illustration is pure gimp and relatively new. The large multi-story car is sketch up. All other illustrations created in Second Life with some reworking in Gimp. Sorry the hab photo's are so dark. I stuffed up with the virtual camera. Lol.
Sadly nothing lasts forever even in cyberspace and Space Destiny sim in Second Life with all my work is now gone. When a sim closes the prims are meant to shoot back to your player inventory but it simply could not handle 3600+ prims!
I'm Wesley Farspire in Second Life but bigger worlds call me away most of the time.