“…Whatever the impetus, modern research on commuting stress and its consequences was brought forth by Navaco et al (1979). Navaco and colleagues were the first to apply theoretical knowledge and empirical analysis to the subject of commuting stress, even though there were previous studies on transportation changes and its effects on social and economic issues (e.g., Schaeffer & Schlar, 1980), the process in which community values are COST OF COMMUTING 8 integrated into the transportation planning (e.g., Catalano & Monahan, 1976;Olson, 1969), and even research investigating public opinion on mass transit, and using that information to develop strategies for expanding ridership on mass transit services (Deslauriers & Everett, 1977;Everett et al, 1974;Horowtiz & Sheth, 1976). They observed an area of psychology -that is, transportation stress -that had not yet received much research attention.…”