Carpool

Carpooling is also a more environmentally friendly and sustainable way to travel as sharing journeys reduces air pollution, carbon emissions, traffic congestion on the roads, and the need for parking spaces.

HOV lanes can create strong practical incentives for carpooling by reducing travel time and expense.

In 2011, an organization called Greenxc[7] created a campaign to encourage others to use this form of transportation in order to reduce their own carbon footprint.

Several people were fined by undercover tax officers during a 2011 crackdown, posing as passengers looking for a ride on carpooling websites.

On 19 March 2012 Endre Spaller, a member of the Hungarian Parliament interpellated Zoltán Cséfalvay, Secretary of State for the National Economy, about this practice who replied that carpooling should be endorsed instead of punished, however care must be taken for some people trying to turn it into a way to gain untaxed profit.

But if we include in the calculation the depreciation of the vehicle purchase and maintenance, insurance and taxes paid by the driver, we get a cost around $1/mile.

They make possible to occupy the vehicle's empty seats on the fly, collecting and delivering passengers along its entire route (and not only at common points of origin and destination).

[11] The US Office of Civilian Defense asked neighborhood councils to encourage four workers to share a ride in one car to conserve rubber for the war effort.

Together with Prof. James Davidson from Harvard, Dace Campbell, Ivan Lin and Habib Rached from Washington, and others, began to investigate the feasibility of further development although the comprehensive technologies were not commercially available yet at the time.

Their work is considered by many to be a forerunner of carpooling & ridesharing systems technology used by Garrett Camp, Travis Kalanick, Oscar Salazar and Conrad Whelan at Uber.

The popularity of the Internet and smart phones has greatly helped carpooling to expand, enabling people to offer and find rides thanks to easy-to-use and reliable online transport marketplaces.

As of March 2020[update], Uber and Lyft have suspended carpooling services in the U.S. and Canada in efforts to control the COVID-19 pandemic via social distancing.

A sign encouraging carpooling during the gas shortage resulting from the 1973 oil crisis
Carpool pick-up place in the Netherlands
Typical park-and-ride sign in the United States , this one located at the interchange between Interstate 79 and Pennsylvania Route 488 in Portersville, Pennsylvania north of Pittsburgh . Such services are used to encourage carpooling.
A poster used to promote carpooling in the U.S. as a way to ration gasoline during World War II
The share of US workers commuting by carpool has declined from 20.4% in 1970 to just 9.7% in 2011.