The random regret minimization (RRM) model has arisen as the counterpart of the random utility minimization (RUM) model in the transportation analysis in recent years. In the conventional RRM model, the inability to account for the route perception variance is shown with a two-route small network. Considering the route length of different alternatives, a location-based model is proposed in this paper. In the newly proposed model, two ratios, including the ratio between considered regret and alternative route travel time and the ratio between considered route travel time and alternative route travel time play an important role in the modification. With the proposed model, the choice probability for the two-route testing network is calculated again and the anticipated choice probability is shown. With a medium sized traffic network, the choice probability for different routes restricted to a specific Origin Destination (OD) pair is also calculated to demonstrate the effectiveness of the newly proposed model.
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