In this model, instead of the ratio between the impedances, their difference is used for the distribution rule. The impedance is additionally divided by a scaling divisor.
The utility is as follows:
The percentage of demand is as follows:
Parameter β describes the sensitivity of passengers towards increased impedances. As in this case the differences rather than the ratios of the impedances are considered, it does not matter whether two routes have impedances of 5 and 10 minutes, for example, or 95 and 100 minutes. Illustration 91 shows the parameterization of the Logit distribution model on the interface.
Illustration 91: Parameterization of the Logit distribution model
