The Chicago Area Transportation Study (CATS) 1990 Household Travel Survey was a self-administered mail-out mail-back survey. The purpose of the study was to update existing data on travel patterns and
The Norwegian National Travel Survey 2009 (RVU 2009) is the sixth national survey of travel behaviour conducted in Norway. The first was done in 1985, the next four in 1992, 1998, 2001 and 2005. The N