Modeling and controlling congestion caused by a bottleneck in an overcrowded aquarium
Modeling and controlling congestion caused by a bottleneck in an overcrowded aquarium
复制标题
DOI：
10.1016/j.physa.2023.128547
复制
发表时间：
2023-02
期刊：
影响因子：
--
通讯作者：
Riho Kawaguchi;D. Yanagisawa;Claudio Feliciani;Shigeto Nozaki;Yukari Abe;Makiko Mita;K. Nishinari
中科院分区：
文献类型：
--
作者：
Riho Kawaguchi;D. Yanagisawa;Claudio Feliciani;Shigeto Nozaki;Yukari Abe;Makiko Mita;K. Nishinari
在本研究中，我们使用改进的完全不对称简单排除过程对拥挤的水族馆进行建模，并提出了一种具有优化输入率的新票务系统。我们对日本的大型水族馆Kaiyukan进行了一个案例研究，该水族馆遇到了严重的拥堵，主要是由于游客交通流量的瓶颈。Kaiyukan结构简单，独特之处在于游客可以通过固定的单向通道，而不是典型的博物馆或水族馆布局，游客可以在开放区域自由移动。本文采用理论分析和数值模拟相结合的方法研究了由瓶颈引起的基本拥塞特征，并提出了一种新的拥塞评价指标。利用该模型和指标，我们开发了一种新颖的售票系统，旨在减少拥堵，同时保持最大流量。所提出的系统包括一个30分钟的休息，并且表明比旨在保持恒定输入速率的传统方法具有更好的性能。结果表明，通过引入我们的票务系统，Kaiyukan可以减少等待的游客数量，并保持其目前的每日出勤率。
In this study, we modeled a crowded aquarium using a modified totally asymmetric simple exclusion process and propose a new ticketing system with optimized input rates. We performed a case study for Kaiyukan, a large-scale aquarium in Japan, which encounters heavy congestion primarily caused by a bottleneck in the visitor traffic flow. Kaiyukan has a simple structure and is distinct in that visitors walk through a fixed one-way aisle, as opposed to a typical museum or aquarium layout where visitors can move freely through open areas. We investigated basic congestion features caused by the bottleneck using theoretical analysis and numerical simulations, and developed a new indicator to estimate congestion. Using the model and indicator, we developed a novel ticketing system designed to reduce congestion while preserving the maximum flow. The proposed system includes a 30 min break and indicated a better performance than the conventional method of aiming to maintain a constant input rate. The results indicate that Kaiyukan can reduce the number of visitors waiting and maintain its current daily attendance by introducing our ticketing system.