Travel behaviour is a term that means studying what people do during their travel and how people use transportation.[1][2][3]
These questions can be answered descriptively using a travel diary, often part of a travel survey or travel behavior inventory. Large metropolitan areas typically only do such surveys once every decade, though some cities are conducting panel surveys, which track the same people year after year. Such repeated surveys are useful because they yield different answers than surveys at a single point in time.[4]