You are the 2nd person to bring up the flaw of space efficiency. It is a genuine technical critique, and I’m working on a followup article right now to address it.

For single buildings of relatively small size, it probably doesn’t work. It’s not true that the space tradeoff is one-for-one, because elevators have moving parts that are more expensive (the moving parts of the car are already paid for because they are multi-application). A double corkscrew would have very good throughput (continuous operation helps a lot) but corkscrews have a minimum viable size due to the arguments you made and elevators are smaller than that size for small buildings.

A corkscrew car ramp that services multiple connected buildings, on the other hand, would change that equation.

Obligatory analytical writing, online participation account for Medium. Engineering, software, books, space, constant daydreaming.

Obligatory analytical writing, online participation account for Medium. Engineering, software, books, space, constant daydreaming.