Saratoga Springs, Carribean Beach, and Dixie Landings (PO Riverside) are spread out into sections that have their own bus stops. What this means is that a diesel bus has the travel around the ENTIRE resort to look for guests waiting at a bus stop. An electric light rail/trolley from the section stops to a central stop at the lobby could be a more efficient and cheaper way to transport guests becuase you get the efficiencies of a demand based bus system with the cost reductions of electric power vs. diesel and natural gas.
I think that would work because the buses would still be available as a back-up. The cost issue, and themeing problems, would keep this from happening.
