The United States, with its enormous highways, sprawling suburbs and neglected public transport systems, is one of the most car-dependent countries in the world. But this arrangement of obligatory driving is making many Americans actively unhappy, new research has found. The car is firmly entrenched as the default, and often only, mode of transport for the vast majority of Americans, with more than nine in 10 households having at least one vehicle and 87% of people using their cars daily. Last year, a record 290m vehicles were operated on US streets and highways. However, this extreme car dependence is affecting