The term shunpiking comes from the word shun, meaning "to avoid", and pike, a term referring to turnpikes, which are roads that require payment of a toll to travel on them. People who often avoid toll roads sometimes call themselves shunpikers.
Shunpiking has also come to mean an avoidance of major highways (regardless of tolls) in preference for bucolic and scenic interludes along lightly traveled country roads.
Read more about Shunpiking: Early Shunpikes, Delaware Turnpike Example, Pennsylvania Turnpike Example, Historical Boycott in Virginia, Examples in Britain, In Popular Culture