Route guidance during evacuations integrated with perimeter control strategy in large-scale mixed traffic flow networks
Route guidance during evacuations integrated with perimeter control strategy in large-scale mixed traffic flow networks
复制标题
大规模混合交通流网络中疏散路线引导与周界控制策略相结合
DOI：
10.1142/s0129183118501127
复制
发表时间：
2018-11
影响因子：
1.9
通讯作者：
Li dongmei
中科院分区：
文献类型：
--
作者：
Liu Mianfang;Li dongmei
近年来，大规模混合交通网络的有效监控和交通管理仍然是交通研究者和实践者面临的一个挑战。人车混合流诱导疏散建模的难点在于混合流和非均匀或异质网络流。已有的研究表明，多区域控制可以体现不同层次的交通状态测量和控制，并在大规模网络动力学中引入异质性效应。最优边界控制可以控制在两个区域之间传输的流量的百分比，提供实时流量管理策略以提高网络性能。然而，路径诱导疏散与周界控制策略集成的异构交通网络的情况下的效果仍然是未知的。本文在这方面的进展，首先扩展路径选择行为聚合与周界控制。对于疏散研究，我们考虑校园及其周围的交通网络，可以分为两种类型的网络：第一种包括涉及大量疏散人员的紧急区域，第二种包括通往不同目的地的道路。第二个网络由具有不同疏散方向的一些区域组成。在此基础上，提出了一种基于宏观基本图（MFD）表示的交通流优先分配策略，并利用LOGIT模型在区域内引导疏散人员在交叉口的路径选择。此外，比较结果表明，所提出的路径诱导策略具有相当大的潜力，以提高性能和平衡条件（即系统最优和用户平衡）的整体网络。
Recent efficient monitoring and traffic management of large-scale mixed traffic networks still remain a challenge for both traffic researchers and practitioners. The difficulty in modeling route guidance evacuation of pedestrian-vehicle mixed flow lies in mixed flow and uneven or heterogeneous network flow. Existing studies have demonstrated that multi-region control can display different layers of traffic state measurement and control, and incorporate heterogeneity effect in the large-scale network dynamics. The optimal perimeter control can manipulate the percentages of flows that transfer between two regions, offering real-time traffic management strategies to improve the network performance. However, the effect of route guidance evacuation integrated with perimeter control strategies in case of heterogeneous traffic networks is still unexplored. The paper advances in this direction by firstly extending route choice behavior aggregation with perimeter control. For an evacuation study, we consider a campus and its surrounding traffic network that can be classified into two types of networks: the first includes emergency areas that involve a large number of evacuees, and the second includes roads that lead to different destinations. The second network consists of some regions with different evacuation directions. Based on the configuration, this paper proposes a route evacuation guidance control strategy that addresses traffic flow first assignment between regions by controlling perimeter flow with the help of Macroscopic fundamental diagram (MFD) representation and to guide evacuates’ route choice at intersections by LOGIT model in regions. In addition, comparison results show that the proposed route guidance strategy has considerable potential to improve performances and equilibrium conditions (i.e. system optimum and user equilibrium) on the overall network.
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影响因子：
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