Maybe there are other mechanisms, but the one shown in [1] seems pretty simple. The top of the gondola arm has a flat spot, and there are both wheels and the c

Maybe there are other mechanisms, but the one shown in [1] seems pretty simple. The top of the gondola arm has a flat spot, and there are both wheels and the cable mechanism on the underside. In the station it detaches from the cable and just rides on the flat track, and then motor-driven tires push on the gondola to propel it at a controlled speed through the station. [1] https://youtu.be/589uRMy4Ty4?t=222 https://youtu.be/589uRMy4Ty4?t=222