A new method is proposed to estimate multi-attribute utility functions based upon t he law of comparative judgements. The method was applied to analyze commuter route choice problems. Attitude surveys about commuter preferences for cornmuting conditions were carried out to test the validity of the method. The results show that the method yields reasonable parameter values and good fittness to the observed data. The method developed in this paper is very ueful for transportation planning, and can be applied to other fields, especially to behavior scinece.
