**The best for individuals, families, large groups, and cargo.** Not all modes of transport are the same. Not all use cases of transport are the same. Here are some highlights. # Individual Transport Encased recumbent bicycles are the ‘kings’ of energy efficiency Bikes are next highest Then walking # Family Transport More research needed. I assume smart cars would be the best for-purpose family travel. Obviously the family all riding individual bikes would be best, or hopping on the bus. But the use case of suburban or rural families of 4 getting to where they need to go - that’s tougher. # Public Transport Buses, trams, and trains are much more energy efficient than everyone sitting in traffic in their 2 ton vehicles. # Freight Transport Rail is the most efficient method of moving large quantities of heavy stuff over land. Over the ocean you don’t really have much of a choice, but in general the bigger the ship & the more cargo, the better. Maximize the ratio of {weight of stuff being moved} to {weight of thing moving the stuff} **** ## Source [#179 - Feature: Transportation](http://aarongilly.com/179-feature-transportation/) ## Related - [[I.C. Engines Efficiencies]] - [[Well-to-Wheel Efficiency for Conventional vs Electric Vehicles]]