Describe two concepts for autonomous transportation and/or delivery systems that would replace manned transportation and/or delivery systems. Each capability description should be no more than one...

Extracted text: Describe two concepts for autonomous transportation and/or delivery systems that would replace manned transportation and/or delivery systems. Each capability description should be no more than one paragraph in total. There are no illustrations or figures required. These notions should be distinct (e.g., they should not be two sorts of remote cars or two types of ground transportation, such as an autonomous truck and an autonomous taxi - think about the various types of domains that are available!) and should be differentiated from one another.