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Effectiveness of traffic light system on Brazilian consumers perception of food healthfulness
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作者 Mayara Lima Marcela de Alcantara +1 位作者 Amauri Rosenthal Rosires Deliza 《Food Science and Human Wellness》 SCIE 2019年第4期368-374,共7页
Front-of-package(FOP)nutrition labelling schemes were developed to improve consumer’s comprehension about the food nutrients associated with non-communicable diseases(NCDs).Several FOPs have already been developed,an... Front-of-package(FOP)nutrition labelling schemes were developed to improve consumer’s comprehension about the food nutrients associated with non-communicable diseases(NCDs).Several FOPs have already been developed,and Brazil is in the process of evaluating a scheme to introduce in the products.The aim of this study was to investigate the impact of TLS,the scheme proposed by the food industry,on the product healthfulness perception.A study with 141 participants was carried out.A conjoint task was designed considering three categories and levels:types of dairy products(light yogurt,prato cheese,and chocolate flavoured milk),Traffic Light System(yes vs.no)and brand(well-known vs.unknown).The effect of TLS on perceived healthfulness was evaluated using a 9-point scales(1:not healthy;9:very healthy).Results showed that the inclusion of TLS did not influence the perceived healthfulness of the products by consumers,even among consumers with higher interest in healthy eating.These findings suggest that the proposal supported by the food industry does not seem to be the most appropriate,being recommended the development of further studies to compare the efficacy of TLS and other FOP schemes. 展开更多
关键词 Front of pack traffic light system Healthfulness perception Food products
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A New System for Road Traffic Optimisation Using the Virtual Traffic Light Technology
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作者 Ahmad A.A.Alkhatib Adnan A.Hnaif Thaer Sawalha 《Computer Systems Science & Engineering》 SCIE EI 2023年第10期637-656,共20页
Large cities suffer from traffic congestion,particularly at intersections,due to a large number of vehicles,which leads to the loss of time by increasing carbon emissions,including fuel consumption.Therefore,the need ... Large cities suffer from traffic congestion,particularly at intersections,due to a large number of vehicles,which leads to the loss of time by increasing carbon emissions,including fuel consumption.Therefore,the need for optimising the flow of vehicles at different intersections and reducing the waiting time is a critical challenge.Conventional traffic lights have been used to control traffic flow at different intersections and have been improved to become more efficient by using different algorithms,sensors and cameras.However,they also face some challenges,such as high-cost installation,operation,and maintenance issues.This paper develops a new system based on the Virtual Traffic Light(VTL)technology to improve traffic flow at different intersections and reduce the encountered loss of time and vehicles’travel time.Additionally,it reduces the costs of installation,maintenance and operation over various conventional traffic light systems.Consequently,the system proposes algorithms for traffic scheduling and lane identification by using vehicle ID,priority and time of arrival.To evaluate the system,four scenarios were presented where each scenario uses a different number of vehicles consisting of three types(emergency vehicles,public buses and private vehicles),each given a different priority.The proposed system is evaluated by integrating two simulators,namely,(OMNeT++)and(SUMO),and two frameworks,namely,(VEINS)and(INET)to prepare an appropriate working environment.the results prove that an improvement in the average travel time for several vehicles reaches 44.43%–49.76%compared with conventional traffic lights.Further,it is proven from the obtained results that the average waiting time for emergency vehicles is enhanced by 96.63%–97.63%,while the average waiting time for public buses is improved by 94.81%–97.23%.On the other hand,the waiting time for private vehicles‘improved by 87.14%to 89.71%’. 展开更多
关键词 Virtual traffic lights(VTL) vehicle-to-roadside unit(V2R) RSU smart vehicles(SV) intelligent traffic system(ITS)
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Intelligent 3-Way Priority-Driven Traffic Light Control System for Emergency Vehicles
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作者 Joe Essien Felix Uloko 《Open Journal of Applied Sciences》 2023年第8期1207-1223,共17页
The problem of traffic congestion is a significant phenomenon that has had a substantial impact on the transportation system within the country. This phenomenon has given rise to numerous intricacies, particularly in ... The problem of traffic congestion is a significant phenomenon that has had a substantial impact on the transportation system within the country. This phenomenon has given rise to numerous intricacies, particularly in instances where emergency situations occur at traffic light intersections that are consistently congested with a high volume of vehicles. This implementation of a traffic light controller system is designed with the intention of addressing this problem. The purpose of the system was to facilitate the operation of a 3-way traffic control light and provide priority to emergency vehicles using a Radio Frequency Identification (RFID) sensor and Reduced Instruction Set Computing (RISC) Architecture Based Microcontroller. This research work involved designing a system to mitigate the occurrence of accidents commonly observed at traffic light intersections, where vehicles often need to maneuver in order to make way for emergency vehicles following a designated route. The research effectively achieved the analysis, simulation and implementation of wireless communication devices for traffic light control. The implemented prototype utilizes RFID transmission, operates in conjunction with the sequential mode of traffic lights to alter the traffic light sequence accordingly and reverts the traffic lights back to their normal sequence after the emergency vehicle has passed the traffic lights. 展开更多
关键词 RFID Sensors MICROCONTROLLER traffic light Control system RISC Architecture Intelligent systems
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Design and Analysis of Traffic Information Transmission System Based on Visible Light Communication 被引量:1
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作者 Wei Wang Hui-Fang Liu +2 位作者 Ning Wang Zhao Hui Chi Song 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2013年第5期57-61,共5页
Visible Light Communication( VLC) based on LED is a new wireless communication technology with high response rate and good modulation characteristics in the wavelengths of 380- 780 nm. Compared with conventional metho... Visible Light Communication( VLC) based on LED is a new wireless communication technology with high response rate and good modulation characteristics in the wavelengths of 380- 780 nm. Compared with conventional methods,the waveband of VLC is harmless to human and safe to communication because of no magnetism radiation. An audio information transmission system using LED traffic lights is presented based on VLC technology. The system is consisted of transmitting terminal,receiving terminal and communication channel. Some experiments were made under real communication environment. The experimental results showed that the traffic information transmission system works steadily with good communication quality and achieves the purpose of transmitting audio information through LED traffic lights,with a data transfer rate up to 250 kbps over a distance of 5 meters. 展开更多
关键词 LED traffic lights Visible light Communication(VLC) Audio Information Transmission Intelligent Transport system(ITS)
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Optimal traffic light control method for a single intersecti on basedon hybrid systems
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作者 赵晓华 陈阳舟 崔平远 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第4期453-456,共4页
A single intersection of two phases is selected as a model to put forward a new optimal time-planning scheme for traffic light based on the model of hybrid automata for single intersection. A method of optimization is... A single intersection of two phases is selected as a model to put forward a new optimal time-planning scheme for traffic light based on the model of hybrid automata for single intersection. A method of optimization is proposed for hybrid systems, and the average queue length over all queues is used as an objective function to find an optimal switching scheme for traffic light. It is illustrated that traffic light control for single intersection is a typical hybrid system, and the optimal planning-time scheme can be obtained using the optimal hybrid systems control based on the two stages method. 展开更多
关键词 hybrid systems theory optimal control of hybrid systems traffic light control optimal time-planning
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A Workable Solution for Reducing the Large Number of Vehicle and Pedestrian Accidents Occurring on a Yellow Light
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作者 Pranav Gupta Silki Arora 《Journal of Transportation Technologies》 2024年第1期82-87,共6页
Traffic intersections are incredibly dangerous for drivers and pedestrians. Statistics from both Canada and the U.S. show a high number of fatalities and serious injuries related to crashes at intersections. In Canada... Traffic intersections are incredibly dangerous for drivers and pedestrians. Statistics from both Canada and the U.S. show a high number of fatalities and serious injuries related to crashes at intersections. In Canada, during 2019, the National Collision Database shows that 28% of traffic fatalities and 42% of serious injuries occurred at intersections. Likewise, the U.S. National Highway Traffic Administration (NHTSA) found that about 40% of the estimated 5,811,000 accidents in the U.S. during the year studied were intersection-related crashes. In fact, a major survey by the car insurance industry found that nearly 85% of drivers could not identify the correct action to take when approaching a yellow traffic light at an intersection. One major reason for these accidents is the “yellow light dilemma,” the ambiguous situation where a driver should stop or proceed forward when unexpectedly faced with a yellow light. This situation is even further exacerbated by the tendency of aggressive drivers to inappropriately speed up on the yellow just to get through the traffic light. A survey of Canadian drivers conducted by the Traffic Injury Research Foundation found that 9% of drivers admitted to speeding up to get through a traffic light. Another reason for these accidents is the increased danger of making a left-hand turn on yellow. According to the National Highway Traffic Safety Association (NHTSA), left turns occur in approximately 22.2% of collisions—as opposed to just 1.2% for right turns. Moreover, a study by CNN found left turns are three times as likely to kill pedestrians than right turns. The reason left turns are so much more likely to cause an accident is because they take a driver against traffic and in the path of oncoming cars. Additionally, most of these left turns occur at the driver’s discretion—as opposed to the distressingly brief left-hand arrow at busy intersections. Drive Safe Now proposes a workable solution for reducing the number of accidents occurring during a yellow light at intersections. We believe this fairly simple solution will save lives, prevent injuries, reduce damage to public and private property, and decrease insurance costs. 展开更多
关键词 traffic Accidents Yellow light traffic light Signals INTERSECTION Crashes Collision traffic Fatalities traffic Injuries Vehicles SAFETY Speed Limit Driving Pedestrians Bicyclists MOTORCYCLISTS Caution Line Yellow light Dilemma Left Hand Turn on Yellow Distance Smart Road Technology Signs Signage Autonomous Vehicles AVs Road Safety IoT Internet of Things Infrastructure Accident Reduction Driving Habits Stop Line Red light Jumping Pedestrian Safety Caution light Stopping at Intersection Safety at Intersections
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Traffic light detection and recognition in intersections based on intelligent vehicle
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作者 张宁 何铁军 +1 位作者 高朝晖 黄卫 《Journal of Southeast University(English Edition)》 EI CAS 2008年第4期517-521,共5页
To ensure revulsive driving of intelligent vehicles at intersections, a method is presented to detect and recognize the traffic lights. First, the stabling siding at intersections is detected by applying Hough transfo... To ensure revulsive driving of intelligent vehicles at intersections, a method is presented to detect and recognize the traffic lights. First, the stabling siding at intersections is detected by applying Hough transformation. Then, the colors of traffic lights are detected with color space transformation. Finally, self-associative memory is used to recognize the countdown characters of the traffic lights. Test results at 20 real intersections show that the ratio of correct stabling siding recognition reaches up to 90%;and the ratios of recognition of traffic lights and divided characters are 85% and 97%, respectively. The research proves that the method is efficient for the detection of stabling siding and is robust enough to recognize the characters from images with noise and broken edges. 展开更多
关键词 intelligent vehicle stabling siding detection traffic lights detection self-associative memory light-emitting diode (LED) characters recognition
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Deep Reinforcement Learning for Addressing Disruptions in Traffic Light Control
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作者 Faizan Rasheed Kok-Lim Alvin Yau +1 位作者 Rafidah Md Noor Yung-Wey Chong 《Computers, Materials & Continua》 SCIE EI 2022年第5期2225-2247,共23页
This paper investigates the use of multi-agent deep Q-network(MADQN)to address the curse of dimensionality issue occurred in the traditional multi-agent reinforcement learning(MARL)approach.The proposed MADQN is appli... This paper investigates the use of multi-agent deep Q-network(MADQN)to address the curse of dimensionality issue occurred in the traditional multi-agent reinforcement learning(MARL)approach.The proposed MADQN is applied to traffic light controllers at multiple intersections with busy traffic and traffic disruptions,particularly rainfall.MADQN is based on deep Q-network(DQN),which is an integration of the traditional reinforcement learning(RL)and the newly emerging deep learning(DL)approaches.MADQN enables traffic light controllers to learn,exchange knowledge with neighboring agents,and select optimal joint actions in a collaborative manner.A case study based on a real traffic network is conducted as part of a sustainable urban city project in the Sunway City of Kuala Lumpur in Malaysia.Investigation is also performed using a grid traffic network(GTN)to understand that the proposed scheme is effective in a traditional traffic network.Our proposed scheme is evaluated using two simulation tools,namely Matlab and Simulation of Urban Mobility(SUMO).Our proposed scheme has shown that the cumulative delay of vehicles can be reduced by up to 30%in the simulations. 展开更多
关键词 Artificial intelligence traffic light control traffic disruptions multi-agent deep Q-network deep reinforcement learning
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Advanced Leader Election for Virtual Traffic Lights
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作者 Florian Hagenauer Patrick Baldemaier +1 位作者 Falko Dressler Christoph Sommer 《ZTE Communications》 2014年第1期11-16,共6页
We examine the network performance of algorithms for self-organized traffic management. In particular, we focus on wireless network- ing between cars. One of many technologies that make road traffic safer and more eff... We examine the network performance of algorithms for self-organized traffic management. In particular, we focus on wireless network- ing between cars. One of many technologies that make road traffic safer and more efficient is the Virtual Traffic Light (VTL) system, which is able to coordinate the traffic flow at intersections without the need for physical lights. VTL takes a leading vehicle at an inter- section and uses it to control the traffic lights. We developed algorithms for leader election and traffic light computation in realistic ve- hicular networking scenarios. Our key contribution is the extension of this algorithm to support arbitrary intersection layouts. We in- vestigated the proposal in synthetic and realistic scenarios. The results show that, overall, VTLs use network resources efficiently and positively influences driving experience. It performs better than stationary traffic lights for a low to medium network load. We also identify potential optimizations to deal with high network load and to improve fairness. 展开更多
关键词 virtual traffic lights SELF-ORGANIZATION vehicular networks
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Design of Traffic Light Based on Field Programmable Gate Array
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作者 Lei Zhao 《Journal of Power and Energy Engineering》 2021年第5期93-103,共11页
The use of fixed-time traffic lights for road traffic control has the disadvantage of low traffic efficiency. In order to optimize the vehicle traffic at the intersection, this paper proposes a design scheme of a real... The use of fixed-time traffic lights for road traffic control has the disadvantage of low traffic efficiency. In order to optimize the vehicle traffic at the intersection, this paper proposes a design scheme of a real-time control system for road intelligent traffic lights based on FPGA. The system adopts the polling control model, the vehicle detector detects the arrival rate of vehicles, and obtains the corresponding traffic light green time length according to the traffic rules and polling model theory. Using Altera<span><span><span>’</span></span></span><span><span><span>s Cyclone IV series EP4CE15E22C8 chip as the development platform, a specific design plan is given. The circuit mainly includes program-controlled amplifier module, AD acquisition module, cross-correlation calculation module, serial port transmission and Lab-VIEW module. The system can realize the intelligent adjustment of traffic lights. Different vehicle arrival rates are detected at different times, so that the corresponding traffic light configuration time length changes accordingly. This intelligent adjustment controls road traffic and makes the main and branch roads coordinate and cooperate, thereby improving the traffic efficiency of the intersection.</span></span></span> 展开更多
关键词 FPGA Intelligent traffic lights Clock Division Polling Model
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A Framework for Agent-Based Traffic Light Control
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作者 Ping Wang 《通讯和计算机(中英文版)》 2013年第5期713-716,共4页
关键词 交通灯控制 Agent 框架 多智能体系统 智能交通控制 代理方式 历史信息 交通拥堵
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Multi-Objective Optimization of Traffic Signal Timing at Typical Junctions Based on Genetic Algorithms
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作者 Zeyu Zhang Han Zhu +3 位作者 Wei Zhang Zhiming Cai Linkai Zhu Zefeng Li 《Computer Systems Science & Engineering》 SCIE EI 2023年第11期1901-1917,共17页
With the rapid development of urban road traffic and the increasing number of vehicles,how to alleviate traffic congestion is one of the hot issues that need to be urgently addressed in building smart cities.Therefore... With the rapid development of urban road traffic and the increasing number of vehicles,how to alleviate traffic congestion is one of the hot issues that need to be urgently addressed in building smart cities.Therefore,in this paper,a nonlinear multi-objective optimization model of urban intersection signal timing based on a Genetic Algorithm was constructed.Specifically,a typical urban intersection was selected as the research object,and drivers’acceleration habits were taken into account.What’s more,the shortest average delay time,the least average number of stops,and the maximum capacity of the intersection were regarded as the optimization objectives.The optimization results show that compared with the Webster method when the vehicle speed is 60 km/h and the acceleration is 2.5 m/s^(2),the signal intersection timing scheme based on the proposed Genetic Algorithm multi-objective optimization reduces the intersection signal cycle time by 14.6%,the average vehicle delay time by 12.9%,the capacity by 16.2%,and the average number of vehicles stop by 0.4%.To verify the simulation results,the authors imported the optimized timing scheme into the constructed Simulation of the Urban Mobility model.The experimental results show that the authors optimized timing scheme is superior to Webster’s in terms of vehicle average loss time reduction,carbon monoxide emission,particulate matter emission,and vehicle fuel consumption.The research in this paper provides a basis for Genetic algorithms in traffic signal control. 展开更多
关键词 Multi-objective GA optimization traffic light timings average delay time the average number of stops traffic capacity SUMO simulation
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TWO-DIMENSIONAL CELLULAR AUTOMATON TRAFFIC MODELWITH RANDOMLY SWITCHING TRAFFIC LIGHTS
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作者 顾国庆 许伯铭 +1 位作者 汪秉宏 戴世强 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1998年第9期807-813,共7页
Cellular automation traffic models can include various factors in traffic systems and the corresponding computational simulations are rather simple and effective. The Biham-Middleton-Levine model (BML model) facilitat... Cellular automation traffic models can include various factors in traffic systems and the corresponding computational simulations are rather simple and effective. The Biham-Middleton-Levine model (BML model) facilitates the simulation of two-dimensional traffic flow problems via the cellular automaton models. In this paper, the BML model is improved by removing its limitation of synchronized change of traffic lights. In the new model, the traffic light at each crossing could arbitrarily change its starting time and tempo of variation, and hence the model could more realistically describe the influence of traffic lights on the performance of traffic systems. Some new effects appearing in the new model are also elucidated. 展开更多
关键词 cellular automata traffic model traffic light phase transition
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宜居城市环境品质提升关键问题与研究路径
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作者 郝洛西 张改景 +1 位作者 曹亦潇 邵戎镝 《世界建筑》 2024年第10期80-85,共6页
我国城市已迈入以品质提升为主的转型发展新阶段,宜居环境建设成为城市发展的新理念、新目标。本文介绍了“城市可度量、居民能感知、方法更本土、技术高融合”的城市环境品质提升策略与路线,重点阐述了“宜居城市环境品质评价和提升的... 我国城市已迈入以品质提升为主的转型发展新阶段,宜居环境建设成为城市发展的新理念、新目标。本文介绍了“城市可度量、居民能感知、方法更本土、技术高融合”的城市环境品质提升策略与路线,重点阐述了“宜居城市环境品质评价和提升的本土化理论方法”“城市道路慢行系统与空间环境的适应性改造”“城市声、光、热环境品质的协同提升”与“城市宜居环境综合品质预测模型及应用”四大关键问题,以期构筑“新标尺”,支撑对城市环境品质的精确测度与科学提升。此外,本研究还就数智技术驱动下城市环境品质提升模式的创新与变革进行了探讨。 展开更多
关键词 宜居城市 环境品质 本土理论 慢行系统 声光热环境 城市预测模型 数智驱动
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页岩油气开发诱发地震的研究现状及进展——以加拿大、美国和中国为例
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作者 刘汉青 胡才博 石耀霖 《地震工程学报》 CSCD 北大核心 2024年第5期1179-1195,1213,共18页
页岩油气的开发助推了全球油气储量及产量增长,重塑了全球能源格局。伴随着页岩油气开发过程中的水力压裂和废水处理,页岩油气田附近的诱发地震频率急剧增加,其中大多数为微地震,但破坏性地震也时有发生。这种现象主要发生于美国中西部... 页岩油气的开发助推了全球油气储量及产量增长,重塑了全球能源格局。伴随着页岩油气开发过程中的水力压裂和废水处理,页岩油气田附近的诱发地震频率急剧增加,其中大多数为微地震,但破坏性地震也时有发生。这种现象主要发生于美国中西部、加拿大西部和中国西南地区。页岩油气开发诱发地震成因复杂,目前普遍认为主要有三种诱发机制:静态库仑应力变化、孔隙弹性介质理论和流体压力扩散及无震滑移。在汇总全球主要页岩油气诱发破坏性地震分布及其诱发机制的基础上,以加拿大的不列颠哥伦比亚省霍恩河盆地和阿尔伯塔省的Fox Creek地区,美国的科罗拉多州南部、新墨西哥州北部的Raton盆地和俄克拉何马州,中国的重庆市荣昌地区和四川省长宁—兴宁地区为例,系统论述页岩油气开发典型诱发地震的基本情况和诱发机制,介绍诱发地震的前瞻性预测与管控措施,并对页岩油气开发诱发地震的研究现状及进展进行总结和展望。 展开更多
关键词 页岩油气 水力压裂 废水处理 诱发机制 前瞻性预测 红绿灯系统
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基于PLC的多路口交通灯控制系统的设计 被引量:1
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作者 马卜森 《黑龙江科学》 2024年第4期148-151,共4页
PLC可编程序控制器是以微处理器为基础,结合计算机、自动控制及通信等先进的工业控制设备,凭借构造简洁、程序编制简便、工作稳定可靠等特点,被广泛应用于生产生活中。PLC、机器人、CAD/CAM是现代工业自动化的三大支柱,PLC对作业环境的... PLC可编程序控制器是以微处理器为基础,结合计算机、自动控制及通信等先进的工业控制设备,凭借构造简洁、程序编制简便、工作稳定可靠等特点,被广泛应用于生产生活中。PLC、机器人、CAD/CAM是现代工业自动化的三大支柱,PLC对作业环境的适应能力较高,在红绿灯控制中运用广泛,可有效减少排队等待时间,达到科学管理的目的。采用EDA技术对交叉口信号灯闪烁和车流进行仿真,展示可编程逻辑控制器在信号灯控制中的应用。通过编写组态程序使人们对PLC和MCGS的使用有更深层次的了解。通过PLC开发令管理人员更好地利用PLC对现场信息进行采集及控制,从系统设计、梯形图设计到组态设计,再到现场测试,全面掌握PLC的设计流程,为工程项目产品开发及设计提供参考。 展开更多
关键词 多路口交通灯控制系统 可编程逻辑控制器 MCGS系统
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基于缓解交通拥堵路况的信号灯配时及道路导向优化研究
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作者 张天宇 赵玉婷 +1 位作者 梁辰 连兰兰 《物流科技》 2024年第18期121-128,146,共9页
随着城市化进程的不断推进,交通拥堵问题成为影响城市居民生活和企业运营的主要挑战之一。文章旨在通过优化城市交叉口红绿灯时序,改善城市交通拥堵状况,提高交通流畅性和安全性。红绿灯作为交通控制的关键因素,其时序规划的合理性直接... 随着城市化进程的不断推进,交通拥堵问题成为影响城市居民生活和企业运营的主要挑战之一。文章旨在通过优化城市交叉口红绿灯时序,改善城市交通拥堵状况,提高交通流畅性和安全性。红绿灯作为交通控制的关键因素,其时序规划的合理性直接关系到城市交通系统的运行效率。为了应对城市交通的复杂性和多样性,文章构建了一个综合考虑机动车、行人和非机动车等多种交通参与者的微观交通仿真模型,通过数学公式和遗传算法进行优化,旨在找到最佳的红绿灯时序配置,以实现交通系统的最优化。文章的仿真实验选取了城市实际交叉口为案例,通过调整红绿灯时序观察交通流的变化,验证了模型和算法的有效性。通过研究发现,优化红绿灯时序不仅能够改善交通拥堵问题,提高交通流畅性,还能保障行人及非机动车的交通安全,这为未来城市的可持续发展和居民的出行提供了有益的参考和指导。 展开更多
关键词 红绿灯时序 交通系统 运行效率 仿真实验 可持续发展
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基于Proteus的非机动车闯红灯提示系统设计
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作者 何一凡 潘峰 +2 位作者 马婷 程岚岚 胡竞寒 《计算机技术与发展》 2024年第11期214-220,共7页
在国内中小城市郊区的道路信号交叉口,由于缺少相关人员监管,非机动车闯红灯现象频发,严重影响了道路交通安全。为此,根据中小城市郊区道路信号交叉口交通设施设备的实际情况,提出一种简单、快捷和高效的非机动车闯红灯提示系统。系统... 在国内中小城市郊区的道路信号交叉口,由于缺少相关人员监管,非机动车闯红灯现象频发,严重影响了道路交通安全。为此,根据中小城市郊区道路信号交叉口交通设施设备的实际情况,提出一种简单、快捷和高效的非机动车闯红灯提示系统。系统采用毫米波雷达对非机动车进行探测;提出设置禁止站立区,将风险前置,实现对非机动车闯红灯行为的预判;提出使用提示信号灯,将非机动车闯红灯行为告知机动车驾驶员,帮助机动车驾驶员提前发现路口状况。研究结果表明:所设计的非机动车闯红灯提示系统运行正常,能够帮助机动车驾驶员提前发现道路信号交叉口的突发状况,减少了机动车与非机动车发生碰撞的概率,有效地提高了道路交通安全并为相关部门进一步改善交通设施提供了一定的参考。 展开更多
关键词 中小城市郊区 非机动车 闯红灯 提示系统 交通安全 PROTEUS
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支持自动点灯功能的汉巴南高铁调度集中系统设计
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作者 赵宏涛 王振东 +2 位作者 青建昌 邵珣 杨丹 《中国铁路》 北大核心 2024年第5期97-103,共7页
针对汉巴南高铁在项目开通初期需在常态灭灯区段运行LKJ控车模式列车的实际需求,经过研究对比,选择调度集中系统自动点灯方案为信号系统配套实施方案。方案涉及中心行调台、各级中转接口服务器、车站追踪服务器和自律机等多个子系统及... 针对汉巴南高铁在项目开通初期需在常态灭灯区段运行LKJ控车模式列车的实际需求,经过研究对比,选择调度集中系统自动点灯方案为信号系统配套实施方案。方案涉及中心行调台、各级中转接口服务器、车站追踪服务器和自律机等多个子系统及其内部模块的开发升级。以兼容和扩展为原则进行方案整体设计,提供LKJ控车模式数据灵活输入和可靠传输机制,在车站核心自律机增设自动点灯模块和升级计划执行模块,完成自动点灯逻辑与既有排路逻辑融合、自动点灯时机计算以及自动点灯重试和报警等功能。增设参数进行业务管控和算法调优,确保自动点灯功能的安全性、适配性和精准性。方案已成功应用于汉巴南高铁并取得预期效果,为调度集中系统在复杂场景下的功能补齐提供解决思路。 展开更多
关键词 汉巴南高铁 调度集中系统 LKJ控车模式 自动点灯 点灯时机
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Mathematical Modeling,Field Calibration and Numerical Simulation of Low-Speed Mixed Traffic Flow in Cities 被引量:1
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作者 Doctoral Candidate: Feng SuweiAdvisor: Prof. Dai Shiqiang 《Advances in Manufacturing》 SCIE CAS 1998年第2期86-88,共3页
Withtherapiddevelopmentoftransportationandautomobileindustry,theconflictbetweenmotormanufactureandhighwaycon... Withtherapiddevelopmentoftransportationandautomobileindustry,theconflictbetweenmotormanufactureandhighwayconstructionbecomess... 展开更多
关键词 low speed mixed traffic flow in cities mathematical modeling numerical simulation field calibration vehicular parking traffic light control
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