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Micro-scale built environment and pedestrian behavior: A focus on sidewalks in commercial districts in Tokyo
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作者 Yuhan Gao Da Du Nobuaki Furuya 《Frontiers of Architectural Research》 2025年第2期416-428,共13页
Sidewalks play an indispensable role in creating walkable environments.In commercial districts,sidewalks increase connectivity and can enhance pedestrian volume,which promotes commerce.While past research has explored... Sidewalks play an indispensable role in creating walkable environments.In commercial districts,sidewalks increase connectivity and can enhance pedestrian volume,which promotes commerce.While past research has explored commercial factors affecting pedestrian behavior on sidewalks,few studies have explored the effects of architectural factors.This study centers on two sidewalks in commercial districts in Tokyo as a case study,seeking to elucidate the relationship between micro-scale built environment factors and pedestrian behavior.Nineteen factors are analyzed in relation to pedestrian volume and staying.Correlation analysis reveals that pedestrian volume and staying are significantly correlated with seven and six built environment factors,respectively.Stepwise multiple linear regression further reveals that pedestrian volume is positively correlated with passable width,W/D,and movable greening,while being negatively correlated with flagship.Staying,conversely,is positively correlated with passable width,sky rate,and D/H.Based on these identified relationships,a predictive model is established for pedestrian volumes in sidewalks in commercial districts.The findings of this study may provide workable insights for decision-makers aiming to establish walkable environments and encouraging pedestrian activity and may aid in developing detailed plans based on specific factors influencing pedestrian behavior. 展开更多
关键词 Built environment pedestrian behavior SIDEWALK WALKABILITY Stepwise regression
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Understanding pedestrian behavior and spatial relations:A pedestrianized area in Besiktas,Istanbul 被引量:5
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作者 Ozge Ceylin Yıldırım Elif C¸elik 《Frontiers of Architectural Research》 CSCD 2023年第1期67-84,共18页
This research provides a mixed method of investigating and analyzing pedestrian behavior in pedestrianized areas,which is one of the human-based urban development practices.The relationship between pedestrian behavior... This research provides a mixed method of investigating and analyzing pedestrian behavior in pedestrianized areas,which is one of the human-based urban development practices.The relationship between pedestrian behavior and perception of the city is discussed through a combination of architect and urban planner Gordon Cullen’s theory and Space Syntax methodology.This study examines the development and implementation of the methodology to understand the relationship between pedestrian behavior and space in Besiktas Koyici settlement,Istanbul.The methodology,integrated with on-site observations(observing 10 min at five different observation points in the settlement at predetermined times on weekdays and weekends),surveys(determining pedestrian movement and perception in terms of Cullen’s theory)and spatial configuration(Space Syntax analysis(connectivity,integrity)done with DepthMapX software),aims to analyze pedestrian behavior patterns.The concepts of sense of place and content,as well as the effects of their sub-concepts on their behaviors,were revealed because of a survey conducted with students and architects of variety of educational levels who are daily users of the field.Pedestrian counting and observations were used to create density,activity,and mobility maps of the area.It has been found that pedestrianized areas have a significant impact on pedestrian behavior through influencing vitality and appeal and that Cullen’s theory may be used to analyze pedestrian behavior and perceptions of the city.The study showed that spatial configuration and Cullen’s theory effect pedestrian movement by complementing each other. 展开更多
关键词 pedestrian behavior pedestrianization Besiktas Gordon Cullen’s theory Space syntax
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Simulation study on cooperation behaviors and crowd dynamics in pedestrian evacuation 被引量:3
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作者 Ya-Ping Ma Hui Zhang 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第3期488-495,共8页
Pedestrian evacuation is actually a process of behavioral evolution. Interaction behaviors between pedestrians affect not only the evolution of their cooperation strategy, but also their evacuation paths-scheduling an... Pedestrian evacuation is actually a process of behavioral evolution. Interaction behaviors between pedestrians affect not only the evolution of their cooperation strategy, but also their evacuation paths-scheduling and dynamics features. The existence of interaction behaviors and cooperation evolution is therefore critical for pedestrian evacuation. To address this issue, an extended cellular automaton(CA) evacuation model considering the effects of interaction behaviors and cooperation evolution is proposed here. The influence mechanism of the environment factor and interaction behaviors between neighbors on the decision-making of one pedestrian to path scheduling is focused. Average payoffs interacting with neighbors are used to represent the competitive ability of one pedestrian, aiming to solve the conflicts when more than one pedestrian competes for the same position based on a new method. Influences of interaction behaviors, the panic degree and the conflict cost on the evacuation dynamics and cooperation evolution of pedestrians are discussed. Simulation results of the room evacuation show that the interaction behaviors between pedestrians to a certain extent are beneficial to the evacuation efficiency and the formation of cooperation behaviors as well. The increase of conflict cost prolongs the evacuation time. Panic emotions of pedestrians are bad for cooperation behaviors of the crowd and have complex effects on evacuation time. A new self-organization effect is also presented. 展开更多
关键词 pedestrian EVACUATION EVACUATION TIME INTERACTION behaviorS COOPERATION
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Research on Open Block's Pedestrian System Based on the EnvironmentBehavior Theory: A Case Study of Shenzhen Oct-loft 被引量:1
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作者 LIN Jingwei ZHANG Yinan 《Journal of Landscape Research》 2017年第4期17-21,28,共6页
In the context of banning gated communities, blocks returning to the human-oriented scale become the new normal, and pedestrian system design will be paid more attention in the urban planning field. Oct-Loft Creative ... In the context of banning gated communities, blocks returning to the human-oriented scale become the new normal, and pedestrian system design will be paid more attention in the urban planning field. Oct-Loft Creative Park is a template for open blocks in Shenzhen, with a convenient and humanized pedestrian system. This paper selects the creative park's pedestrian system as the research object, using the environment-behavior theory for analysis. Finally, optimization strategies of pedestrian system will be put forward. 展开更多
关键词 SHENZHEN OCT-Loft Open blocks pedestrian system Environment-behavior
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Pedestrian choice behavior analysis and simulation of vertical walking facilities in transfer station
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作者 李永行 贾洪飞 +3 位作者 李军 周亚楠 原志路 李延忠 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第10期562-570,共9页
Considering the interlayer height, luggage, the difference between queuing pedestrians, and walking speed, the pedestrian choice model of vertical walking facilities is established based on a support vector machine. T... Considering the interlayer height, luggage, the difference between queuing pedestrians, and walking speed, the pedestrian choice model of vertical walking facilities is established based on a support vector machine. This model is verified with the pedestrian flow data of Changchun light-rail transfer station and Beijing Xizhimen transfer station. Adding the pedestrian choice model of vertical walking facilities into the pedestrian simulation model which is based on cellular automata, the pedestrian choice behavior is simulated. In the simulation, the effects of the dynamic influence factors are analyzed. To reduce the conflicts between pedestrians in opposite directions, the layout of vertical walking facilities is improved. The simulations indicate that the improved layout of vertical walking facilities can improve the efficiency of pedestrians passing. 展开更多
关键词 vertical walking facilities pedestrian choice behavior support vector machine cellular automata
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Simulation of Pedestrian Evacuation Behavior Considering Dynamic Information Guidance in a Hub
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作者 ZHOU Xuemei WEI Guohui +1 位作者 GUAN Zhen XI Jiaojiao 《Journal of Shanghai Jiaotong university(Science)》 2024年第6期1091-1102,共12页
Simulation of pedestrians’behavior in the hub can help decision-makers to formulate better evacuation strategies.With this aim,this study develops an improved cellular automata model considering pedestrian’s mass-fo... Simulation of pedestrians’behavior in the hub can help decision-makers to formulate better evacuation strategies.With this aim,this study develops an improved cellular automata model considering pedestrian’s mass-following psychology and competitive awareness,and based on this model,pedestrian’s evacuation process from the channel of the hub with two exits is simulated.Moreover,dynamic guidance information,e.g.,the realtime congestion situation of the evacuation routes,plays an important role during pedestrian evacuation processes in a hub,as the evaluation routes can be adjusted based on this information.That is,the congestion situation during the evaluation can be improved.Thus,dynamic signs are incorporated into the proposed model to study the influence of dynamic guidance information on pedestrian evacuation behavior.In simulation experiments,the influence of two parameters,namely the proportion of pedestrians unfamiliar with the hub and update interval of dynamic signs,on pedestrian evacuation behavior is studied.Results show that dynamic guidance information can improve the efficiency of pedestrian evacuation.In particular,the higher the proportion of pedestrians unfamiliar with the hub is,the more obvious the effect of dynamic guidance information is.Besides,different proportions of pedestrians unfamiliar with the hub lead to different update intervals of dynamic signs.Finally,the results of this study can provide some implications to the practical hub operation and evacuation,e.g.,to standardize the order of evacuation routes and improve the information service level in the hub. 展开更多
关键词 cellular automata model dynamic guidance information pedestrian’s evacuation behavior pedestrian simulation
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Analysis of conflict factors between pedestrians and right-turning vehicles at signalized intersections 被引量:8
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作者 Chen Yongheng Liu Fanghong +2 位作者 Bai Qiaowen Tao Chuqing Qi Xingzu 《Journal of Southeast University(English Edition)》 EI CAS 2019年第1期118-124,共7页
Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedest... Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedestrians. A pedestrian safety analysis of the common right-turn mode at four-phase signalized intersections is presented. Relative risk is used as a measure of the effect of behaviors. The analysis mainly includes five pedestrian factors that affect the conflict process between pedestrians and right-turning vehicles. Pedestrians tend to have a higher risk of being involved in conflicts in the following six situations: crossing with others, running over the crossing, entering the intersection, being near the exit lane, crossing in the middle or at the end of a green light when the right-turn lane is shared, crossing at the beginning of a green light or red period when the right-turn lane is exclusive. It is easier for pedestrians to get priority when crossing the street in the following situations: running over a crossing, entering the intersection, being near the entrance lane, and not using the crosswalk. However, pedestrians are more inclined to yield to right-turning vehicles when pedestrians are crossing in the middle of the green light time. Some measures to alleviate the conflict are put forward according to the conclusion. Video observations also indicate that a clear pedestrian waiting area must be marked for both pedestrian safety and right-turning vehicle efficiency at major flat intersections, particularly when the arms cover the lateral dividing strips. 展开更多
关键词 SAFETY conflicts pedestrian behaviors right-turning vehicles relative risk
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Model and application of bidirectional pedestrian flows at signalized crosswalks
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作者 Tao Zhang Gang Ren +1 位作者 Zhi-Gang Yu Yang Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第7期606-618,共13页
This research of bidirectional pedestrian flows at signalized crosswalks is divided into two parts: model and applica- tion. In the model part, a mixed survey including the questionnaire investigation and tracking in... This research of bidirectional pedestrian flows at signalized crosswalks is divided into two parts: model and applica- tion. In the model part, a mixed survey including the questionnaire investigation and tracking investigation is conducted to gain the basic data about walking tendentiousness of a pedestrian crossing. Then, the forward, right-hand, outstripping, and influential coefficients are outlined to quantize walking tendentiousness of pedestrian crossing and estimate transition probabilities of pedestrians. At last, an improved cellular automation model is proposed to describe walking tendentious- ness and crossing behaviors of pedestrians. In the application part, channelization research of bidirectional pedestrian flows is presented for real signalized crosswalk. In this process, the effects of right-side-walking and conformity behaviors on the efficiency of pedestrian crossing are thoroughly analyzed based on simulations and experiments to obtain a final channelization method to raise the efficiency of a pedestrian crossing at the crosswalk. 展开更多
关键词 pedestrian flows right-side-walking behavior conformity behavior simulation
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考虑行人结伴行为及通过能力的大型车站应急疏散模型
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作者 王炜 姚恩建 《铁道学报》 北大核心 2025年第5期22-30,共9页
大型车站作为人流和物流的集散中心,其应急疏散效率直接关系到公共安全。既有的应急疏散方法忽略了行人结伴行为对应急疏散效率的影响。针对此问题,将度量大型车站内通行设施通过能力的M/G/C/C模型与考虑行人结伴行为的社会力模型相结合... 大型车站作为人流和物流的集散中心,其应急疏散效率直接关系到公共安全。既有的应急疏散方法忽略了行人结伴行为对应急疏散效率的影响。针对此问题,将度量大型车站内通行设施通过能力的M/G/C/C模型与考虑行人结伴行为的社会力模型相结合,提出一种考虑行人结伴行为与设施通过能力的应急疏散模型,有效地辨识与分析轨道交通大型车站内局部行人应急疏散的疏散瓶颈点和疏散时间。以某大型车站站内换乘疏散通道为例,并与M/G/C/C模型对比分析。研究结果表明,行人结伴行为会影响应急疏散过程中行人行走速度和通行设施的最大容量,进而影响大型车站内应急疏散时的输出率、输出效率、拥堵概率、期望疏散人数、期望疏散时间、平均密度。 展开更多
关键词 应急疏散 行人结伴行为 M/G/C/C模型 疏散时间 疏散瓶颈
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手机分心条件下行人运动特性研究
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作者 姚明 王宇航 +1 位作者 曹淑超 马露涵 《交通运输系统工程与信息》 北大核心 2025年第2期364-372,共9页
为探究手机分心行为对行人运动轨迹、步态特征和步行速度的影响,本文通过设计可控实验方案,开展了正常与3种分心(阅读、发消息和看视频)状态下的步行运动实验。基于图像处理技术获得高精度行人运动轨迹,量化分析不同的分心行为对运动轨... 为探究手机分心行为对行人运动轨迹、步态特征和步行速度的影响,本文通过设计可控实验方案,开展了正常与3种分心(阅读、发消息和看视频)状态下的步行运动实验。基于图像处理技术获得高精度行人运动轨迹,量化分析不同的分心行为对运动轨迹、步长、步宽、步进时间和步行速度的影响。结果表明:分心行为使运动轨迹更加无序,其中视频组的偏移距离最大,较正常组增加33.98%。分心行为使行人加速能力变差,行人的步行速度降低,视频组的加速度下降26.78%,弛豫时间增加了44.88%,步行速度下降幅度达28.24%。从步态特征来看,整体步长随着分心程度的加重而缩短,步宽和步进时间则呈现相反趋势。其中消息组步长最短,步宽最大,步进时间最长。通过线性拟合步行速度与步态参数之间的关系发现,步长随步行速度的增大而增加,步宽和步进时间与速度成反比。 展开更多
关键词 城市交通 行人安全 分心行为 运动轨迹 步态特征
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中小学校人流仿真模拟与空间优化策略——基于MassMotion模型的设计探索
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作者 周曦 汤尧 +1 位作者 张芳 杨世琪 《南方建筑》 北大核心 2025年第9期80-92,共13页
新时期中小学校园人流问题日益复杂化,现实中部分校园空间出现了各型拥堵问题。引入了行为仿真模拟方法对3所差异化的中小学校园人流进行分析。首先,在Mass Motion技术平台中构建校园空间模型,结合实地调研设定人流的各项参数。然后,分... 新时期中小学校园人流问题日益复杂化,现实中部分校园空间出现了各型拥堵问题。引入了行为仿真模拟方法对3所差异化的中小学校园人流进行分析。首先,在Mass Motion技术平台中构建校园空间模型,结合实地调研设定人流的各项参数。然后,分析上下学、出操、用餐和课间5个高峰时段的行人密度图、个体路线图、占用时间地图与个体计数图,总结出校园空间在入口空间、走廊、楼梯空间与部分通道、等待空间中存在的共性问题。最后,依托平台的量化分析能力提出多种优化设计策略,并将其代入模型中验证其成效,为中小学校园的人流量化分析与空间优化提供了科学依据。 展开更多
关键词 中小学校 行为仿真模拟 MassMotion 人流分析 空间优化
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无信号灯控制路段人行横道车辆让行行为研究
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作者 陈文强 薛盼盼 +1 位作者 王涛 顾玉磊 《交通运输系统工程与信息》 北大核心 2025年第5期215-225,共11页
无信号灯控制路段人行横道作为交通事故高发区域,其车辆让行行为是平衡行人安全与交通效率的核心问题。本文针对无信号灯控制路段人行横道车辆让行率低与违法判定标准单一化问题,提出异质性车辆让行行为模型与决策空间分区框架。基于西... 无信号灯控制路段人行横道作为交通事故高发区域,其车辆让行行为是平衡行人安全与交通效率的核心问题。本文针对无信号灯控制路段人行横道车辆让行率低与违法判定标准单一化问题,提出异质性车辆让行行为模型与决策空间分区框架。基于西安市雁塔路中段人行横道1511起人车交互事件数据,结合动力学模型与Logistic回归分析,得出以下结论:车辆让行行为群体异质性显著,公交车让行率最高,出租车因经济激励驱动接近速度最高,私家车让行率最低。速度-距离为核心动力学变量,车速每增1 m·s^(-1),让行概率降18.6%;纵向距离每扩1 m,让行概率升13.7%;行人速度每升1 m·s^(-1)显著提升让行概率317%。社会环境驱动行为合规性,并行车辆触发“规范性效应”,使让行概率提升146%;低流量时段违法风险显著上升,需通过警示设施弥补监管缺口。本文可为差异化执法、车辆群体管控及设施优化提供理论支撑。 展开更多
关键词 城市交通 车辆让行行为 机器视觉 人车冲突 让行决策空间
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改进的L型通道行人转弯行为仿真模型 被引量:1
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作者 郝妍熙 刘巍 +2 位作者 胡华 方勇 刘志钢 《交通运输系统工程与信息》 北大核心 2025年第3期383-392,共10页
行人在交通环境中的转弯行为是行人交通流研究的重要组成部分。本文以L型单向通道中的行人流为研究对象,基于实地实验和模拟仿真研究转弯行人运动机理。首先,依据行人转弯时在不同区域的运动特征,将L型通道划分为4个区域,并考虑不同宽... 行人在交通环境中的转弯行为是行人交通流研究的重要组成部分。本文以L型单向通道中的行人流为研究对象,基于实地实验和模拟仿真研究转弯行人运动机理。首先,依据行人转弯时在不同区域的运动特征,将L型通道划分为4个区域,并考虑不同宽度和不同服务水平下的行人运动特征,改进现有模型的自驱动力方向和通行规则,建立改进的L型通道直角转弯模型。然后,在地铁站直角转弯区及模拟场地采集行人转弯轨迹,分析路径选择、变道位置和转弯位置,并据此标定改进的直角转弯模型参数,搭建行人直角转弯仿真平台。最后,对比分析100条L型直角转弯通道的右转行人轨迹的仿真与实验数据,得到实验轨迹空间和仿真轨迹空间相似度为89.4%,验证了改进模型的准确性和有效性。 展开更多
关键词 城市交通 直角转弯行为 社会力模型 行人仿真 行人流
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数据驱动的城轨车站行人仿真方法研究 被引量:1
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作者 韩烽凡 刘爽 +2 位作者 朱亚迪 杨烨 王曦 《交通运输系统工程与信息》 北大核心 2025年第1期86-91,共6页
为解决传统的城市轨道交通车站行人仿真中个体运动轨迹与真实行走轨迹差异较大的问题,同时提高行人仿真结果与真实轨迹的匹配度,本文基于循环神经网络模型,融合传统社会力模型中行人之间以及行人与障碍物之间的交互机制和视角机制,构建... 为解决传统的城市轨道交通车站行人仿真中个体运动轨迹与真实行走轨迹差异较大的问题,同时提高行人仿真结果与真实轨迹的匹配度,本文基于循环神经网络模型,融合传统社会力模型中行人之间以及行人与障碍物之间的交互机制和视角机制,构建了一种基于数据驱动的行人仿真方法。同时,利用残差网络结构考虑城市轨道交通车站内复杂场景对行人行走轨迹的影响,利用条件变分自编码器融合局部路径终点预测,进一步提高仿真结果的准确度。采用国际公共数据集,以及中国某城市地铁车站视频监控数据进行模型训练,验证了方法的有效性。仿真结果表明:本文提出的仿真方法相较于传统社会力方法以及其他研究方法的平均位移误差和终点位移误差至少减少了11.9%和10.2%;结合场景信息和终点信息修正,进一步减少了平均位移误差和终点位移误差28.1%和25.9%,验证了本文方法的有效性。 展开更多
关键词 交通工程 行人仿真模型 深度学习 乘客行为 城市轨道交通
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基于决策层级理论的行人过街行为建模与仿真
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作者 闫伟曦 陈鹏 +1 位作者 唐鹏 刘霆威 《公路交通科技》 北大核心 2025年第11期11-20,共10页
【目标】为精细化描述行人在信号控制路段人行横道处的过街行为,分析研究行人过街的行为机理,基于决策层级理论构建行人过街行为模型。【方法】在战术层级上,考虑到行人的过街过程可划分为路侧至路中、路中至路侧两个阶段,基于二元Logis... 【目标】为精细化描述行人在信号控制路段人行横道处的过街行为,分析研究行人过街的行为机理,基于决策层级理论构建行人过街行为模型。【方法】在战术层级上,考虑到行人的过街过程可划分为路侧至路中、路中至路侧两个阶段,基于二元Logistic回归模型对行人在路侧与在路中不同场景下的过街决策分别建模。在执行层级上,考虑传统社会力模型在模拟信号控制条件下行人过街运动的局限性,通过对不同信号阶段的期望速度差异化标定、引入对向避让力来改进社会力模型,进而构建行人过街微观运动模型。最后,利用AnyLogic仿真实现过街行为模型,结合实际观测数据,验证了所建模型的有效性。【结果】路侧环境下和路中环境下行人过街决策的影响因素差别较小,但是行人在路侧至路中阶段所做决策考虑的因素要更加全面,还包括道路中央分隔形式和安全岛设置两个因素;行人性别、同向过街行人数量、车流量、车辆到达时间、过街距离、过街绿灯时长占比等因素对行人过街决策结果的影响较为显著;仿真得到的与实际调查的相应信号阶段行人过街的平均速度均服从同一分布。【结论】基于决策层级理论构建的行人过街行为模型更为细致地反映行人过街时的决策行为,描述不同信号状态下行人期望速度的差异;相比传统模型,引入对向避让力能更真实地模拟行人过街过程中的微观运动行为。 展开更多
关键词 智能交通 行人过街仿真 社会力模型 行人过街行为 决策层级
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基于临近车辆速度和距离预测儿童过街风格
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作者 杨蒙蒙 常若松 +3 位作者 马锦飞 沈卓 王宁 梁超 《人类工效学》 2025年第1期31-39,共9页
目的儿童是交通环境中易受伤害的群体之一。探讨儿童过街的方式和规律。预测儿童的过街风格,以预防儿童交通伤害。方法随机抽取沈阳市某小学一年级、三年级和六年级的儿童共60名,使用中国版《行人行为量表》获得儿童对自身过街行为表现... 目的儿童是交通环境中易受伤害的群体之一。探讨儿童过街的方式和规律。预测儿童的过街风格,以预防儿童交通伤害。方法随机抽取沈阳市某小学一年级、三年级和六年级的儿童共60名,使用中国版《行人行为量表》获得儿童对自身过街行为表现的主观认识并设计了包含投影和斑马线的模拟交通场景,通过视频记录儿童实际的过街行为表现,如儿童的过街时间。结果过街风格与年龄、性别、车速、车距、来车到达时间以及行人行为量表总分均存在显著相关(P<0.05);通过二元逻辑回归分析发现,性别、车速、车距可以显著预测儿童的过街风格。在车距为远时,不论是低分组还是高分组的儿童在车速慢情境下的来车到达时间均显著高于车速快情境下的来车到达时间。结论(1)临近车辆的速度和其与行人的相对距离影响儿童的过街行为;(2)来车到达时间影响儿童的过街风格;(3)车速、车距、行人行为量表得分显著预测儿童的过街风格。根据儿童行人的过街风格,可以有针对性地对小学生进行安全教育。 展开更多
关键词 交通安全工程 交通心理 过街风格 TTC 车距 车速:儿童行人安全 行人行为量表 事故预防
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基于知识图谱的异常个体提前识别模型研究
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作者 徐式芃 王雷 盛捷 《计算机工程》 北大核心 2025年第9期59-70,共12页
识别视频中的异常个体是计算机视觉领域重要的研究课题,已有算法主要研究如何检测出异常行为的爆发期,而忽略了异常行为的发展阶段,同时存在异常定义不明确、可解释性差、应用场景泛化能力不强等问题。针对上述问题,提出一种基于知识图... 识别视频中的异常个体是计算机视觉领域重要的研究课题,已有算法主要研究如何检测出异常行为的爆发期,而忽略了异常行为的发展阶段,同时存在异常定义不明确、可解释性差、应用场景泛化能力不强等问题。针对上述问题,提出一种基于知识图谱的异常个体提前识别模型。对视频进行行人检测与跟踪、行人视觉关注目标检测和行人行为识别,以捕获与异常行为相关的行人属性特征;建立针对异常个体的知识图谱网络,提出年龄属性、社交距离等4种节点建模算法,根据行人属性对节点进行建模,更好地分析异常个体在异常行为发展期的特征;提出拐卖儿童、偷窃/抢劫和打架3种基于节点状态转移的异常个体推理算法,对知识图谱节点进行状态推理,得出个体在未来发生异常行为的概率值,实现对异常个体的提前识别,采用的推理算法增强了模型的可解释性;制作并标注异常个体提前发现数据集,定义偷窃、打架、抢劫和拐卖儿童4种异常行为,其中的样本源自不同的拍摄场景。在该数据集上评估模型的有效性,实验结果表明,该模型的均值平均精度(mAP)为22.83%,优于其他主流行为识别模型,其中与SlowFast模型相比提升了18.96百分点,表明所提模型能在异常行为爆发之前有效地识别出异常个体,且模型对应用场景具有良好的泛化能力。 展开更多
关键词 异常行为 提前识别 行为识别 异常检测 行人属性 知识图谱
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无灯控人行横道处机动车干扰下的行人过街行为建模分析
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作者 付豪 陈晗 《汽车与安全》 2025年第11期51-56,共6页
无灯控人行横道处,如何引导行人安全高效地完成过街、减少行人与机动车的冲突干扰进而降低安全风险,是交通安全领域亟待解决的问题。本文基于元胞自动机的作用邻域,引入社会力模型考量过街行人群体间、行人与机动车之间的交互影响,建立... 无灯控人行横道处,如何引导行人安全高效地完成过街、减少行人与机动车的冲突干扰进而降低安全风险,是交通安全领域亟待解决的问题。本文基于元胞自动机的作用邻域,引入社会力模型考量过街行人群体间、行人与机动车之间的交互影响,建立了描述行人与不同交通参与者交互作用的耦合社会力元胞自动机模型。通过比对实验实测行人过街速度和模型仿真结果,研究结果表明:双样本Kolmogorov–Smirnov检验结果为P=0.24>0.05,即建立的元胞自动机所模拟的行人速度与实验所得的行人速度在统计学上属于同一分布。该研究结果为行人仿真建模和解析无灯控人行横道处的行人过街运动特征提供理论支撑,并为交通管理者制定无灯控人行横道处的引导策略提供参考依据。 展开更多
关键词 无灯控人行横道 行人过街 社会力模型 元胞自动机 交通安全
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信号交叉口行人违法过街行为影响因素研究
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作者 张宁 孙晨 《山东交通科技》 2025年第2期59-62,共4页
随着社会经济和道路交通的快速发展,涉及行人的道路交通事故多发,而行人违法过街行为是造成道路交通事故发生的主要原因。选取山东省滕州市某一典型信号交叉口为研究地点,通过对行人违法过街行为进行定量分析,进而探究信号交叉口行人违... 随着社会经济和道路交通的快速发展,涉及行人的道路交通事故多发,而行人违法过街行为是造成道路交通事故发生的主要原因。选取山东省滕州市某一典型信号交叉口为研究地点,通过对行人违法过街行为进行定量分析,进而探究信号交叉口行人违法过街行为的影响因素,并针对性地提出加强行人群体过街安全的对策。首先对调查数据进行简单的统计性描述,分析了违法行人的性别及年龄分布规律,以及不同违法类型下性别及年龄分布规律;然后利用SPSS软件对调查数据进行相关性分析,验证了行人违法过街行为与行人的性别、年龄具有相关性。结果表明,行人的性别、年龄是影响行人违法过街行为的重要因素。 展开更多
关键词 信号交叉口 行人违法过街 道路交通 影响因素 相关性分析
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一种间断视频监控下行人运动轨迹判定方法
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作者 李景文 孟效德 +2 位作者 姜建武 龚旭 苏志鹏 《计算机应用与软件》 北大核心 2025年第11期144-150,190,共8页
针对传统视频监控中依赖于人工分析数据判定动态目标运动轨迹浪费大量资源及实时性差的问题,提出一种基于物像距离转换匹配的行人轨迹判定方法。利用检测锚框和行人身高数据求取像—物平面之间的动态转换比例系数k并与视频中对应运动像... 针对传统视频监控中依赖于人工分析数据判定动态目标运动轨迹浪费大量资源及实时性差的问题,提出一种基于物像距离转换匹配的行人轨迹判定方法。利用检测锚框和行人身高数据求取像—物平面之间的动态转换比例系数k并与视频中对应运动像元长度结合得出行人在真实地理空间中的运动距离进而与地图API路线测距对比判定行人运动轨迹。此外,动态比例系数k的变化趋势可以检测行人运动过程中是否发生徘徊行为从而对偏移路线进行纠正。实验证明该方法能够去除行人不规则运动对于轨迹判定的影响,为跨摄像头运动目标轨迹判定提供了一种新的解决方法。 展开更多
关键词 行人识别 物像转换 目标交接 徘徊检测
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