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Driverless cars
Main article: Driverless car
Fully autonomous vehicles, also known as robotic cars, or driverless cars, already exist in prototype, and are expected to be commercially available around 2020. According to urban designer and futurist Michael E. Arth, driverless electric
vehicles—in conjunction with the increased use of virtual reality for work, travel, and pleasure—could reduce the world’s 800,000,000 vehicles to a fraction of that number within a few decades.[38] This would be possible if almost all private cars requiring drivers, which are not in use and parked 90% of the time,
would be traded for public self-driving taxis that would be in near constant use. This would also allow for getting the appropriate vehicle for the particular need—a bus could come for a group of people, a limousine could come for a special night out, and a Segway could come for a short trip down the street for one person. Children could be chauffeured in supervised safety, DUIs would no longer exist, and 41,000 lives could be saved each year in the U.S. alone.[39][40]
Future car technologies
Main article: Future car technologies
Automobile propulsion technology under development include gasoline/electric and plug-in hybrids, battery electric vehicles, hydrogen cars, biofuels, and various alternative fuels.
Research into future alternative forms of power include the development of fuel cells, Homogeneous Charge Compression Ignition (HCCI), stirling engines[41], and even using the stored energy of compressed air or liquid nitrogen.
New materials which may replace steel car bodies include duraluminum, fiberglass, carbon fiber, and carbon nanotubes.
Telematics technology is allowing more and more people to share cars, on a pay-as-you-go basis, through such schemes as City Car Club in the UK, Mobility in mainland Europe, and Zipcar in the US.
Alternatives to the automobile
Main article: Alternatives to the automobile
Established alternatives for some aspects of automobile use include public transit (buses, trolleybuses, trains, subways, monorails, tramways), cycling, walking, rollerblading, skateboarding, horseback riding and using a velomobile. Car-share arrangements and carpooling are also increasingly popular–the U.S. market leader in car-sharing has experienced double-digit growth in revenue and membership growth between 2006 and 2007, offering a service that enables urban residents to “share” a vehicle rather than own a car in already congested neighborhoods.[42] Bike-share systems have been tried in some European cities, including Copenhagen and Amsterdam. Similar programs have been experimented with in a number of U.S. Cities.[43] Additional individual modes of transport, such as personal rapid transit could serve as an alternative to automobiles if they prove to be socially accepted.[44]
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