Stupid question, but shouldn't the number of vehicles be a multiple of 4?
And doesn't Chapek have more important things to decide than the number of ride vehicles being actively cycled through an attraction?
As others said, just multiple of 2, since that how the vehicles are grouped, in pairs. Tho technically you could add 1 or 3, and run at an odd number, since the way it works from my understanding, once it's over X amount of vehicles the way it refills wouldn't be impacted by an odd number.
Chapek has been annoyingly invested in the day to day going on of GE for a while now from my understanding.
Multiples of two, not four, since that's how they're dispatched.
I also doubt that the ride can run every single vehicle they have. Attractions are built with spares that are kept in reserve, both to swap out malfunctioning vehicles during the day as well as allow long-term maintenance to refurb and replace wear items on them according to maintenance schedules. Work that can't necessarily be done in a single overnight session.
-Rob
True, that's why the fleet is 38 in totally. In reality tho, I don't think Rise will ever really run at the full 36. I can't think of a single attraction that is comparable in the RCS, ie Indy or Racers, that runs at 100% capacity.