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arXiv 0807.3710physics.soc-ph
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非均匀交通流中高流状态持续时间的幂律

A Power Law for the Duration of High-Flow States in Heterogeneous Traffic Flows

Dirk Helbing, Benno Tilch

摘要:

我们研究了高速公路交通中“高流量状态”的持续时间,定义为交通流量超过给定流量阈值的时间段。我们的经验数据令人惊讶地很好地用幂律表示。此外,幂律指数约为2,取决于所选择的流量阈值。为了解释这一发现,我们研究了一个简单的理论模型的异构交通超车演习,这是能够重现,经验幂律及其指数。

英文摘要:

We study the duration of "high-flow states" in freeway traffic, defined as the time periods for which traffic flows exceed a given flow threshold. Our empirical data are surprisingly well represented by a power law. Moreover, the power law exponent is approximately 2, in dependently of the chosen flow threshold. In order to explain this discovery, we investigate a simple theoretical model of heterogeneous traffic with overtaking maneuvers, which is able to reproduce both, the empirical power law and its exponent.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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