They paid 32 million for the Carousel Hotel land. So I'm finding it hard to think that they are being cheap by not using trams. There is not that much added cost to construction for tram driveways. Actually it's probably cheaper than decorative concrete & landscaping that they will certainly create for the walk. And Disney already has the infrastructure to support tram maintenance. My guess is they have plans to add retail, kiosks, etc. along the new path and they want you to stroll along. Then in the future maybe connect north or south of that to future Disney owned hotels if they can purchase adjacent properties.
The moving walkways/speed ramp idea I can see as being prohibitively expensive. Most of the distance is inclined except for the bridge portion. Add to that the whole length is outdoors - both directions. So they would likely have to consider covering the entire pathway or do constant maintenance on them to keep them running. This isn't like a simple indoor airport setup. It's going to be a hefty cost to install and maintain. No to mention the potential lawsuits for injuries sustained while in movement. The complaints about broken ramps would probably rival the complaints about walking. So I wouldn't blame them for canning that approach.
The moving walkways/speed ramp idea I can see as being prohibitively expensive. Most of the distance is inclined except for the bridge portion. Add to that the whole length is outdoors - both directions. So they would likely have to consider covering the entire pathway or do constant maintenance on them to keep them running. This isn't like a simple indoor airport setup. It's going to be a hefty cost to install and maintain. No to mention the potential lawsuits for injuries sustained while in movement. The complaints about broken ramps would probably rival the complaints about walking. So I wouldn't blame them for canning that approach.