Physica A: Statistical Mechanics and its Applications最新文献

Travel time delay model with lane management policy for connected automated vehicles 具有车道管理策略的网联自动驾驶车辆行驶时滞模型

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-31 DOI: 10.1016/j.physa.2025.130873

Tingting Ren , Yangsheng Jiang , Zhihong Yao

{"title":"Travel time delay model with lane management policy for connected automated vehicles","authors":"Tingting Ren , Yangsheng Jiang , Zhihong Yao","doi":"10.1016/j.physa.2025.130873","DOIUrl":"10.1016/j.physa.2025.130873","url":null,"abstract":"<div><div>This paper proposes a general framework of the travel time delay model with multi-lane road segments to consider different lane management policies (LMPs) for connected automated vehicles (CAVs). First, two LMPs for CAVs and a baseline lane policy are introduced. Second, the car-following modes and their proportions in CAVs dedicated lanes (CDLs) and normal lanes (NLs) with different LMPs are analyzed, respectively. Then, the multi-lane travel time delay model with different LMPs is derived based on the point queue (P-Q) model, and the relevant properties are proposed and proved. Finally, multiple parameters, such as the traffic demand, the penetration rate (PR) of CAVs, and the number of lanes and CDLs, are analyzed to assess their impact on the optimal split ratio, average reduced delay and optimal PR interval based on the proposed model, and the optimal number of CDLs and optimal LMP in different scenarios are given. Results show that (1) the optimal split ratio is always 0 until the PR reaches a critical value. Subsequently, the optimal split ratio increases with the PR; (2) only when the demand exceeds the critical demand and the PR is in the optimal PR interval, the (C, M) and (C, H) policies are possible to reduce the average delay; (3) compared with baseline lane policy, the optimal CDL settings can reduce the average delay by 100 % at maximum; (4) the optimal LMP is the baseline lane policy when the PR or the demand is low, while the optimal LMP is (C, M) policy when both the PR and the demand are high. This work provides insights into the impact of LMPs on travel time delay and helps decide the optimal number of CDLs and the optimal LMP.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130873"},"PeriodicalIF":3.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifractal analysis of braided channel networks using structure functions and fixed-mass measures 基于结构函数和固定质量测度的编织河道网络多重分形分析

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-29 DOI: 10.1016/j.physa.2025.130831

Carlo De Michele , Leonardo Primavera , Giuseppe R. Tomasicchio , Agostino Lauria , Antonio Francone , Elisa Leone , Gianfausto Salvadori , Samuele De Bartolo

{"title":"Multifractal analysis of braided channel networks using structure functions and fixed-mass measures","authors":"Carlo De Michele , Leonardo Primavera , Giuseppe R. Tomasicchio , Agostino Lauria , Antonio Francone , Elisa Leone , Gianfausto Salvadori , Samuele De Bartolo","doi":"10.1016/j.physa.2025.130831","DOIUrl":"10.1016/j.physa.2025.130831","url":null,"abstract":"<div><div>This study presents a multifractal analysis of braided channel networks using a coupled approach that integrates structure functions and fixed-mass measures. The investigation focuses on three braided river systems (namely, Allaro River, Brahmaputra River and Rakaia River), examining the behavior of the number of wet channels measured along the longitudinal spatial development of the river reach. The number of wet channels is shown to be an intermittent 1D signal, whose physical scaling is governed by scaling laws that can be naturally described by multifractal measures. By employing this combined approach, we were able to identify the maximum order of the moments of the measures that characterizes the multifractal spectrum and multiscaling properties of braided channel systems. The methodology for estimating the multifractal spectra is based on a modified Legendre transform relation for singularity strengths, allowing for a quantitative comparison between the multifractal spectra derived from structure functions and those obtained using the fixed-mass method.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130831"},"PeriodicalIF":3.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploration of dynamic thermodynamic properties and hysteresis loops of a bilayer fullerene-like structure 双层类富勒烯结构的动态热力学性质和滞回线的探索

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-28 DOI: 10.1016/j.physa.2025.130864

Wei Wang , Xing-guo Wang , Zhen-yu Liu , Guo-cheng Bao , Zhen-yao Xu

引用次数: 0

Mandatory lane-changing strategy for connected automated trucks in off-ramp area based on evolutionary game theory 基于进化博弈论的网联自动货车匝道区强制变道策略

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-26 DOI: 10.1016/j.physa.2025.130860

Shiyi Yan , Yiwen Zhu , Hao Luo , Yanyan Qin , Zhongbin Luo , Hao Wang

{"title":"Mandatory lane-changing strategy for connected automated trucks in off-ramp area based on evolutionary game theory","authors":"Shiyi Yan , Yiwen Zhu , Hao Luo , Yanyan Qin , Zhongbin Luo , Hao Wang","doi":"10.1016/j.physa.2025.130860","DOIUrl":"10.1016/j.physa.2025.130860","url":null,"abstract":"<div><div>In highway off-ramp area, vehicles often engage in mandatory lane-changing behavior. This behavior can cause speed fluctuations in the mainline traffic flow, leading to traffic congestions and more emissions. The impact of mandatory lane-changing is particularly pronounced for trucks, due to the unique characteristics of their vehicle types. To mitigate speed fluctuations and traffic emissions caused by trucks’ mandatory lane-changing behavior, this paper proposes a connected automated trucks (CATs) off-ramp lane-changing strategy based on evolutionary game theory. First, we presented urgency utility, synergy utility, and deceleration utility of CATs during mandatory lane-changing process in off-ramp area, in order to construct a utility matrix. Based on this, we derived replicator dynamic equation. Building on this, an off-ramp lane-changing strategy for CATs was developed. Finally, the effectiveness of the proposed strategy in mitigating speed fluctuations and reducing traffic emissions was validated using the SUMO simulation platform. The results show that the proposed strategy can smooth speed fluctuations and reduce traffic emissions. Compared with traditional truck off-ramp lane-changing strategy, the overall traffic emissions of CO, HC, and NOx under the proposed strategy are reduced by 13.3 %, 8.4 %, and 10.7 %, respectively. Notably, while optimizing their own lane-changing decisions, CATs also improve operational conditions of surrounding vehicles. Compared with the traditional strategy, the proposed strategy leads to a reduction in CO, HC, and NOx emissions of the surrounding vehicles by 7.8 %, 7.6 %, and 16.7 %, respectively.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130860"},"PeriodicalIF":3.1,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-26 DOI: 10.1016/j.physa.2025.130825

Angelo A. Flores, Leonardo G.J.M. Voltarelli, Andre S. Sunahara, Haroldo V. Ribeiro, Arthur A.B. Pessa

{"title":"Similarity networks of ordinal-pattern transitions classify falling paper trajectories","authors":"Angelo A. Flores, Leonardo G.J.M. Voltarelli, Andre S. Sunahara, Haroldo V. Ribeiro, Arthur A.B. Pessa","doi":"10.1016/j.physa.2025.130825","DOIUrl":"10.1016/j.physa.2025.130825","url":null,"abstract":"<div><div>Paper fragments in free fall constitute a simple yet paradigmatic mechanical system exhibiting remarkably complex motions. Despite a long history of investigation, this system has defied comprehensive first-principles modeling, motivating the development of phenomenological and experimental approaches to classify the free-fall dynamics of small paper fragments. Here we apply the Bandt–Pompe symbolization method to extract high-dimensional features corresponding to ordinal-pattern transitions (so-called ordinal networks) from observed area time series of video-recorded falling papers shaped as circles, squares, hexagons, and crosses. We then represent each trajectory as a node in a weighted similarity network, with edges encoding pairwise dynamical similarity, and identify motion classes via community detection. Our method automatically clusters trajectories into tumbling and chaotic falls in excellent agreement with expert visual classification. Notably, it outperforms previous approaches based on classical physical features derived from complete three-dimensional trajectories – especially for cross-shaped papers – and requires no prior specification of the number of motion classes. We further find that trajectories diverging from expert classifications occupy more central positions in the similarity network, suggesting more complex and ambiguous dynamic behavior.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130825"},"PeriodicalIF":3.1,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling lane-changing behavior of connected autonomous vehicles based on molecular force fields 基于分子力场的互联自动驾驶汽车变道行为建模

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-25 DOI: 10.1016/j.physa.2025.130856

Dayi Qu , Yuxiang Yang , Kedong Wang , Shanning Cui , Yicheng Chen

{"title":"Modeling lane-changing behavior of connected autonomous vehicles based on molecular force fields","authors":"Dayi Qu , Yuxiang Yang , Kedong Wang , Shanning Cui , Yicheng Chen","doi":"10.1016/j.physa.2025.130856","DOIUrl":"10.1016/j.physa.2025.130856","url":null,"abstract":"<div><div>Connected autonomous vehicles (CAVs) play a pivotal role in intelligent transportation systems, where accurate modeling of lane-changing behavior is essential for ensuring traffic safety and efficiency. To overcome the limitations of existing approaches in capturing dynamic multi-vehicle interactions during lane-change maneuvers, this study introduces a novel lane-changing decision-making model grounded in molecular force field theory. The study begins by analyzing the dynamic characteristics of lane-changing behavior and derives the lane-change expected safety distance. Drawing inspiration from molecular interactions, vehicle behaviors are analogized as attractive and repulsive forces, and a decision-making framework is formulated using the Buckingham potential function. Simulation experiments conducted in the SUMO environment demonstrate that the proposed model reduces risky lane changes by 45 %, increases average vehicle speed by 3.38 %, and improves the average number of successful lane changes by 5.12 %. Compared to traditional models, the proposed approach significantly enhances the safety, efficiency, and comfort of lane-changing behavior. These findings offer a new theoretical foundation for cooperative lane-changing strategies among CAVs in intelligent connected traffic environments.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130856"},"PeriodicalIF":3.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fundamental diagram and stability analysis of mixed traffic flow considering platoon intensity and multiclass time delay 考虑队列强度和多类时延的混合交通流基本图及稳定性分析

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-24 DOI: 10.1016/j.physa.2025.130847

Du Wenju , Huang Zhekai , Li Shukai , Zhang Jiangang

{"title":"Fundamental diagram and stability analysis of mixed traffic flow considering platoon intensity and multiclass time delay","authors":"Du Wenju , Huang Zhekai , Li Shukai , Zhang Jiangang","doi":"10.1016/j.physa.2025.130847","DOIUrl":"10.1016/j.physa.2025.130847","url":null,"abstract":"<div><div>This paper constructs a stability analysis model of mixed traffic flow considering platoon intensity and multiclass time delay, and studies the fundamental diagram and stability of mixed traffic flow composed of human-driven vehicle (HDV), autonomous vehicle (AV), connected autonomous vehicle (CAV) and connected human-driven vehicle (CHV). Firstly, the car-following modes and delay in mixed traffic flow under the influence of vehicle platoon intensity are analyzed, and a Markov chain model is constructed to determine the proportion of different following modes. Secondly, the fundamental diagram models of homogeneous and mixed traffic flow considering platoon intensity and multiclass time delay are derived and analyzed. In addition, the stability conditions of mixed traffic flow considering platoon intensity and multiclass time delay are derived. Finally, the numerical simulation experiments are designed to analyze the effects of platoon intensity, platoon size and delay on the traffic capacity and stability of mixed traffic flow. The results show that (1) the increase in penetration rate of CAV and AV can effectively improve the capacity and stability of mixed traffic flow. (2) When the proportion of CHV in non-CAV penetration rate is greater than 0.5 or the penetration rate of CAV is higher than 0.95, the mixed traffic flow remains stable. (3) Traffic capacity of mixed traffic flow increases with increased platoon intensity and size, representing an increase of approximately 6 % when the platoon intensity was elevated from −0.9–0.9, and representing an increase of approximately 4 % when the platoon size was elevated from 1 to 9. (4) Platoon intensity has a positive effect on the stability of mixed traffic flow, but the platoon size has a negative impact on the stability of mixed traffic flow. (5) All types of time delays have a negative impact on the capacity and stability for mixed traffic flow.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130847"},"PeriodicalIF":3.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive reputation promotes the cooperation of multiplayer snowdrift game on higher-order networks 自适应声誉促进了高阶网络上多人雪堆游戏的合作

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-24 DOI: 10.1016/j.physa.2025.130824

Yuying Zhu , Heng Cui , Chengyi Xia

{"title":"Adaptive reputation promotes the cooperation of multiplayer snowdrift game on higher-order networks","authors":"Yuying Zhu , Heng Cui , Chengyi Xia","doi":"10.1016/j.physa.2025.130824","DOIUrl":"10.1016/j.physa.2025.130824","url":null,"abstract":"<div><div>Recently, network topologies have been predominantly defined by pairwise interactions. However, in human societies and ecosystems, interactions often involve groups of three or more individuals. Here, we investigate the evolution of multiplayer snowdrift game within the framework of scale-free simplicial complexes. We combine four second-order evaluation norms, along with adaptive reputation thresholds that adapt in real-time based on local information with the reputation-based target neighbor selection mechanism, and investigate their impact on cooperative behaviors. Our results indicate that increasing individual reputation sensitivity promotes cooperation under the <span><math><mrow><mi>S</mi><mi>h</mi><mi>u</mi><mi>n</mi><mi>n</mi><mi>i</mi><mi>n</mi><mi>g</mi></mrow></math></span>, <span><math><mrow><mi>I</mi><mi>m</mi><mi>a</mi><mi>g</mi><mi>e</mi></mrow></math></span> <span><math><mrow><mi>s</mi><mi>c</mi><mi>o</mi><mi>r</mi><mi>i</mi><mi>n</mi><mi>g</mi></mrow></math></span>, <span><math><mrow><mi>S</mi><mi>i</mi><mi>m</mi><mi>p</mi><mi>l</mi><mi>e</mi></mrow></math></span> <span><math><mrow><mi>s</mi><mi>t</mi><mi>a</mi><mi>n</mi><mi>d</mi><mi>i</mi><mi>n</mi><mi>g</mi></mrow></math></span> rules, while cooperation is inhibited with the <span><math><mrow><mi>S</mi><mi>t</mi><mi>e</mi><mi>r</mi><mi>n</mi></mrow></math></span> <span><math><mrow><mi>j</mi><mi>u</mi><mi>d</mi><mi>g</mi><mi>i</mi><mi>n</mi><mi>g</mi></mrow></math></span> rule. In addition, cooperation will be suppressed when the number of game players increases from dyadic (two-player) to triadic (three-player) interactions. These results are beneficial to delve into the emergence of cooperation.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130824"},"PeriodicalIF":3.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of three-party quantum game strategy in rumor spreading 谣言传播中的三方量子博弈策略分析

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-23 DOI: 10.1016/j.physa.2025.130837

Wenrong Zheng , Yingping Sun , Xu Zhang , Fengming Liu

引用次数: 0

Probing for high influential nodes in social networks via a co-evolutionary memetic algorithm 通过协同进化模因算法探测社会网络中的高影响力节点

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-07-23 DOI: 10.1016/j.physa.2025.130828

Jianxin Tang, Yihui Li, Jitao Qu, Xinyue Li, Yabing Yao

{"title":"Probing for high influential nodes in social networks via a co-evolutionary memetic algorithm","authors":"Jianxin Tang, Yihui Li, Jitao Qu, Xinyue Li, Yabing Yao","doi":"10.1016/j.physa.2025.130828","DOIUrl":"10.1016/j.physa.2025.130828","url":null,"abstract":"<div><div>The identification of a subset of <em>k</em> high influential nodes in a given network as seed nodes is a fundamental operation to address the influence maximization (IM) problem, which can be formulated as a combinatorial optimization problem and was demonstrated to be NP-hard. Solutions based on evolutionary optimization have been demonstrated to be a promising way to solve the IM problem. However, the utilization of a unified paradigm based on stochastic evolutionary searching mechanisms in the resolution process usually results in premature convergence and susceptibility to local optima. To address the issue, this paper presents a novel bi-directional co-evolutionary memetic algorithm (COMA). By adopting the co-evolution strategy and the memetic concept for reference, the proposed algorithm introduces two distinct evolution directions for the same population as its core. The algorithm employs specific evolutionary strategies for the elite individuals and the common ones to manage a trade-off between the global exploration and local exploitation operations on the partitioned populations, while preserving population diversity. Furthermore, these two evolution directions refine and select individuals based on different evaluation functions, with resulting individuals forming the population of the next generation. Extensive experiments conducted on both synthetic and real-world networks demonstrate the feasibility and effectiveness of the proposed algorithm. The experimental findings indicate that, in comparison to alternative algorithms, COMA enhances the influence spread by an average of 10% in small propagation probabilities and 5.9% in high propagation probabilities.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"675 ","pages":"Article 130828"},"PeriodicalIF":3.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0