Cobra's Curse
There are so many wheels in this picture. The train has 48 wheels that hold it to the track. There are eight yellow wheels at the cars' corners which are used to orient the cars while they pass through the station. Below them are eight more small yellow wheels which support the cars when in the maintenance area.
There are also wheels on the elevators' vertical track rails, and those wheels look to be the same types as the variety of wheels used on the trains. The larger ones are on the straight track and support most of the weight of the trains. The smaller sets of wheels run along a curved track that moves the elevator section laterally side to side.
©2021 by Joel A. Rogers.