A generalized attribute variable for models of mode choice behavior. Paper prepared for the 55th Annual Meeting of the Transportation Research Board TRB, Washington, D.C., January 1976.

The paper discusses how abstract transportation system characteristics like convenience can be quantified using psychometric scaling techniques and included as explanatory variables in behavioural models of travel demand. It is concluded that the generalized attribute approach is a feasible concept which can significantly improve the explanatory power of conventional models of travel behaviour.