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首页> 外文期刊>Transportation research, Part B. Methodological >Extending the the Link Transmission Model with non-triangular fundamental diagrams and capacity drops
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Extending the the Link Transmission Model with non-triangular fundamental diagrams and capacity drops

机译：使用非三角形基本图和容量下降扩展链路传输模型

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摘要

The original Link Transmission Model as formulated by Yperman et al. (2006) simulates traffic according to Lighthill-Whitham-Richards theory with a very small numerical error, yet only supports triangular fundamental diagrams. This paper relaxes that restriction in two steps. Firstly, we extend the model to handle any continuous concave fundamental diagram, and prove that this extension is still consistent with Lighthill-Whitham-Richards theory. Secondly, we extend the theory and model to handle a capacity drop, explicitly looking into the handling of both the onset and release of congestion. The final model is still first-order and suitable for general networks. Numerical examples show that it qualitatively improves on the original model due to uniquely featuring complex traffic patterns including stop-and-go waves, with crisp shockwaves between traffic states, as well as acceleration fans. (C) 2016 Elsevier Ltd. All rights reserved.
机译：Yperman等人（2006）制定的原始链路传输模型根据Lighthill-Whitham-Richards理论模拟流量，数值误差非常小，但仅支持三角形基本图。本文分两步放宽了这一限制。首先，我们扩展了模型以处理任何连续凹基本图，并证明了该扩展仍然与Lighthill-Whitham-Richards理论一致。其次，我们扩展了处理容量下降的理论和模型，明确地研究了拥堵的发生和释放的处理。最终模型仍然是一阶的，适用于通用网络。数值算例表明，由于具有独特的复杂交通模式，包括走走停停的波浪、交通状态之间清晰的冲击波以及加速风扇，它在原始模型的基础上有了质的改进。（C） 2016 爱思唯尔有限公司保留所有权利。

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