Yes, When Arrow Development was working with Walt Disney, Bob Gurr and others, they realized that the hourly capacity wouldn't be high enough (and that is back in the late 1950' and its much smaller crowds, so decided todouble the capacity by building two tracks.
You can see Disney did the same with Rocket to the Moon in building 2 theaters that were the same (shared the pre-show, but for the "movie"portion, there were the east and west theeaters.
Also when Carousel of Progress was built, it was designed with the moving audience sections to increase capacity (loading only one theater while other sections were watching the different scens). Also cleverly designed the exit to go out the middle (one of the stages) to help with traffic flow, as it kept everything going one way and an easy flow.
And while Bud Hurlbut (Knott's) designed the first log flume, he was friends with Walt Disney and his staff, and they "borrowed" the idea (also looking at other older attractions) tocome up with the boat system for "it's a small world" and then used for PotC, which was designed as a "People Eater" (large capacity).
And it continues today with attractions like Soarin', which uses multiple theaters of the same show for capacity issues.
Universal also used the basic system in the 1960's and 1970's when as part of the tram tour,they had a Special Effect/Make-up show on the lower lot. The trams pulled up,and they had two separate sound stages offering the exact same show, your tour guide just toook you to one or the other.
Ans in some Theme/Amusement parks, you can find "dualing roller coasters", which is also the basic Matterhorn idea, though the Matterhorn seems like your car is by itself.