Carpooling (also known as car-sharing, ride-sharing, lift-sharing), is the shared use of a car by the driver and one or more passengers, usually for commuting. Carpooling arrangements and schemes involve varying degrees of formality and regularity. Formal carpool projects have been around in a structured form since the mid-1970s.

Carpoolers use pool member's private cars, or a jointly hired vehicle, for private shared journeys. The vehicle is not used in a general public transport capacity such as in car sharing, share taxis or taxicabs. Carpooling is also distinct from the use of a company/government or private vehicle by several pool members but at different times, for economic or other reasons, such as in a military "motor pool", but might involve single occupancy.

Carpooling reduces the costs involved in repetitive or long distance driving by sharing cars, sharing rental charges, or paying the main car owner. Some countries have introduced high-occupancy vehicle (HOV) lanes to encourage carpooling and use of public transport, to combat rising traffic congestion. In wartime, carpooling was encouraged to save oil. In reducing the number of cars on the road, carpooling decreases pollution and the need for parking space, and in a global perspective, reduces greenhouse gas emissions. Shared driving carpooling can also reduce driving stress. A form of ad-hoc carpooling between strangers is called Slugging. No money changes hands, but a mutual benefit still exists between the driver and passenger(s) making the practice worthwhile.

In some cases, companies or local authorities will introduce facilities to encourage private carpooling, often as part of wider transport programs. These can include central listing facilities, defined pick-up points, preferential parking and general advice. This has increased through use of the Internet, mobile phones and other software support systems. A third party rideshare agency may also provide services to enable one off or regular carpooling in defined areas. In the "dynamic ridesharing" concept, a separate system performs a carpool match automatically for approval by the travelers.

Inflexibility in carpooling can arise in accommodating en-route stops or changes to working times/patterns. Some larger carpools offer 'sweeper services' with later running options. A further backup can also be a 'guaranteed ride home' arrangement with a local taxi company.

See also

* Car sharing
* Hitchhiking (especially lift centres, with has similarities with carpooling)
* New Mobility Agenda
* Public transportation
* Rota (schedule)
* Shared transport
* Slugging
* Sustainable transportation
* When You Ride Alone You Ride with bin Laden

External links

* [ Definitions and benefits of carpooling/ridesharing]
* [ Carpool / Rideshare Advocacy Group - Traffic Bulldog]
* [ study on future, dynamic ridesharing services]

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Look at other dictionaries:

  • carpool — 2 verb [intransitive] if a group of people carpool, they go to work together in one car, often using cars owned by different people in the group on different days * * * Ⅰ. carpool UK US (also car pool) /ˈkɑːpuːl/ noun [C] ► TRANSPORT, SOCIAL… …   Financial and business terms

  • Carpool — (по русски чаще всего называется кар пул)  совместное использование автомобиля при поездках. При широком использовании позволяет снизить нагрузки на транспортные системы городов, стоимость проезда. Некоторые города оказывают содействие таким …   Википедия

  • carpool — carpool; carpool·er; …   English syllables

  • carpool — [kär′po͞ol΄] vi., vt. to participate in or transport by participating in a car pool: also car pool …   English World dictionary

  • carpool — /kahr poohl /, n. Also, car pool. 1. Also, carpooling, car pooling. an arrangement among a group of automobile owners by which each owner in turn drives the others or their children to and from a designated place. 2. those included in such an… …   Universalium

  • carpool — car|pool car pool [ˈka:pu:l US ˈka:r ] v [i]especially AmE if a group of people carpool, they travel together to work, school etc in one car and share the cost >carpooling n [U] …   Dictionary of contemporary English

  • carpool — chiefly N. Amer. noun a group of people who arrange to make a journey or journeys in a single car. verb take part in a carpool …   English new terms dictionary

  • carpool — car•pool [[t]ˈkɑrˌpul[/t]] n. Also, car′ pool . 1) an arrangement among automobile owners by which each in turn drives the others to and from a designated place 2) those included in such an arrangement 3) Also, car′ pool . to form or participate… …   From formal English to slang

  • carpool — /ˈkapul/ (say kahpoohl) verb (i) to take part in a car pool: the parents decided to carpool to reduce traffic around the school. Also, car pool. –carpooling, noun …   Australian English dictionary

  • carpool — intransitive verb Date: 1962 to participate in a car pool • carpooler noun …   New Collegiate Dictionary

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