The 1970 Census used "private auto-driver" and "private
auto-passenger"
as transportation modes to work versus "drive alone" and "carpool."
Does
anyone know whether private auto-driver includes only SOVs? The term
implies that it could include those who drive, but were part of a
carpool. The Census book I have does not define the terms. Thank you.
Bill Schaefer
Madison (WI) Area MPO