Erlander, S.; Nguyen, S.; Stewart, N. F. - In: Transportation Research Part B: Methodological 13 (1979) 3, pp. 259-267
We consider a model which combines gravity model trip distribution and equilibrium assignment. This model contains a free parameter which must be fixed using supplementary information, that is, the model must be calibrated. It is natural to ask which supplementary information is sufficient to...