Motorization is a self-reinforcing process, which involves positive feedback. Using a simple model of bi-modal transportation system, it is shown that a transportation system may eventually be dominated by the automobile, or may equilibrate at a grossly inefficient point due to social dilemmas...

Statistical properties of the inhomogeneous version of the Olami-Feder-Christensen (OFC) model of earthquakes is investigated by numerical simulations. The spatial inhomogeneity is assumed to be dynamical. Critical features found in the original homogeneous OFC model, e.g., the Gutenberg-Richter...

This study is concerned with how routine an individual's routine really can be. This question is addressed by examining the day-to-day variability of the time co-ordinate of the vertex of a time-space prism; in other words, by examining how the timeframe which governs the individual's daily...

Household vehicle holding durations are examined in this study using panel data. Panel data enable the observation of changes in household vehicle holdings in discrete time periods. If the data set contains retrospective recall data which offer information on the types and the occurrence time...

Rising costs associated with conducting surveys, coupled with the need to study infrequent choices, have contributed to a growing interest in and employment of choice-based sampling schemes. More recently, several panel surveys are being conducted in the United States and Europe to measure...

Structural changes over time in commuters' travel patterns are examined by formulating and estimating simultaneous equations model systems of activity engagement and travel. Results of large-scale household travel surveys conducted in the Osaka metropolitan area of Japan in 1980, 1990 and 2000...