Hypercongestion—the phenomenon that higher traffic densities can reduce throughput—is well understood at the link level, but has also been observed in a macroscopic form at the level of traffic networks; for instance, in morning rush-hour traffic into a downtown core. In this paper, we show that macroscopic hypercongestion can occur as a purely emergent effect of dynamic equilibrium behavior on a network, even if the underlying link dynamics (we consider Vickrey bottlenecks with spaceless vertical queues) do not exhibit hypercongestion.

中文翻译：

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Vickrey瓶颈网络中的紧急过度拥塞

过度拥塞-较高的流量密度会降低吞吐量的现象-在链路级别上已广为人知，但在流量网络级别也已以宏观形式观察到；例如，在早上的高峰时段，交通便进入了市中心。在本文中，我们表明，即使基础链路动态（我们认为具有无空间垂直队列的Vickrey瓶颈）没有表现出过度拥塞，宏观上的过度拥塞也可能是网络上动态平衡行为的纯粹新兴效应而发生。