The Braess paradox describes the counterintuitive situation that the addition of new roads to road networks can lead to higher travel times for all network users. Recently we could show that user optima leading to the paradox exist in networks of microscopic transport models. We derived phase diagrams for two kinds of route choice strategies that were externally tuned and applied by all network users. Here we address the question whether these user optima are still realized if intelligent route choice decisions are made based upon two kinds of traffic information. We find that the paradox still can occur if the drivers (1) make informed decisions based on their own past experiences or (2) use traffic information similar to that provided by modern navigation apps. This indicates that modern traffic information systems are not able to resolve Braess’ paradox.

Braess悖论描述了一种违反直觉的情况，即在道路网络中添加新道路会导致所有网络用户的旅行时间增加。最近，我们可以证明导致微观悖论的用户最优存在于微观运输模型网络中。我们导出了两种路由选择策略的相位图，这些策略在所有网络用户的外部进行了调整和应用。在这里，我们要解决的问题是，如果根据两种交通信息做出明智的路线选择决策，是否仍能实现这些用户的最优选择。我们发现，如果驾驶员（1）根据自己的过去经验做出明智的决定，或者（2）使用与现代导航应用程序提供的交通信息类似的交通信息，则仍然可能发生悖论。