Carpool
Carpooling is sharing a car with other passengers to help share the cost of operating the car. Besides being cheaper than driving many cars at the same time, it also reduces traffic congestion. There are many companies that provide carpooling services such as Ola, MyCotra, Quickride, and Uber.
Carpool Media
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