The study examines the hypothesis that daily travel-activity behaviour is influenced by the household role, life cycle and other attributes of individuals and households. A specific representation in time and space oftravel-activity relationship and a statistical analysis based on the log-linear model are employed to test the hypothetical relationship. The former qualitative analysis demonstrates that life cycle is a key determinant in deciding wife's travel behaviour, while husband and children are not influenced by life cycle in their daily travel behaviour. The latter statistical analysis confirms above empirical evidence and derived a further fact that daily travel behaviour of wife in household is influenced by her role and age as well.