title: Dilemma game structure observed in traffic flow at a 2-to-1 lane junction.
abstract: Using a cellular automaton traffic model based on the stochastic optimal velocity model with appropriate assumptions for both incoming and outgoing vehicle boundaries, the so-called bottleneck issue on a lane-closing section was investigated in terms of game theory. In the system, two classified driver agents coexist: C agents (cooperative strategy) always driving in the first lane and D agents (defective strategy) trying to drive in a lower-density lane whether the first or the second lane. In high-density flow, D agents' interruption into the first lane from the second just before the lane-closing section creates a heavier traffic jam, which reduces social efficiency. This particular event can be described with a prisoner's dilemma game structure.
authors.affiliation: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University Kasuga-koen, Kasuga-shi, Fukuoka 816-8580, Japan. es208181@s.kyushu-u.ac.jp
authors.forename: Atsuo
authors.initials: A
authors.lastname: Yamauchi
authors.forename: Jun
authors.initials: J
authors.lastname: Tanimoto
authors.forename: Aya
authors.initials: A
authors.lastname: Hagishima
authors.forename: Hiroki
authors.initials: H
authors.lastname: Sagara