| Summary: | 碩士 === 國立政治大學 === 應用物理研究所 === 106 === Using microsimulation we investigate a set of lane-changing rules for highway traffic. We compare three types of lane-changing rules in terms of the fundamental diagram of traffic flow in multi-lane versions of the Nagel-Schreckenberg model: (1) the symmetric rule, in which overtaking is allowed on all lanes; (2) the asymmetric rule, in which overtaking is forbidden on the right; vehicles should use left-hand lanes to overtake but return to the right lane after overtaking when safety criteria are fulfilled; (3) the hybrid rule, in which the leftmost lane is the overtaking lane while other lanes are treated equally as in the symmetric rule; the hybrid rule differs from the asymmetric rule only when the total number of lanes is larger than two. The simulation results show that the overall traffic flow increases when the asymmetric rule of lane changes is applied, revealing the advantage of this type of overtaking regulations.
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