Implicit availability/perception logit models for route choice in transportation networks

The main problems of path choice modeling are, in general, the very large dimension of the choice set and the high overlapping among paths connecting the same OD pair. In this paper a general framework dealing with both these problems is proposed. This framework consists of a path choice model implicitly accounting for intermediate degrees of availability/perception of alternative paths, when overlapping among paths is simulated as a factor influencing perception of paths. The model was calibrated and compared numerically on available RP route choice data with good results.