Abstract
Accessibility measures are important for evaluating transportation and land use. Because the time constraint of individuals is a fundamental dimension of accessibility, many types of space-time accessibility measures (STAMs) have been proposed in the literature. However, none of them is satisfactory. Most of the measures are not theoretically grounded. Although there is a STAM that is derived from the theory underling logit models and satisfies axioms of accessibility measures, it is not consistent with spatial interaction theory and cannot be calibrated in a straightforward manner. Considering the limitations of previous studies, this study formulates an alternative STAM that inherits the theoretical advantages of an existing STAM, is consistent with spatial interaction models, and can be calibrated easily. We also apply the proposed STAM to a case study and demonstrate the plausibility of the measure from the results.
