查询词典 traffic-jam

As the first road and city traffic specialty for master degree, this specialty lie the advanced level among the similar specialties and began incept students from 2000. There are 5 research directions of intelligent road traffic control and management, intelligent traffic information system, traffic programming and management, traffic environment and security, traffic system modeling and stimulation. With the stability theoretic knowledge and abundant practice experience, all graduates with master degree have the opportunity to go to study for doctoral degree, or to do work in these aspects of intelligent traffic, traffic engineering design, transportation programming, traffic control development, traffic establishment construction and so on.

本专业自2000年开始招生，是华南地区最早的以公路交通和城市道路交通为研究对象的硕士专业，处于国内同类专业的先进水平，先后开设有智能道路交通控制与管理；智能交通信息系统；交通规划与管理；交通系统建模仿真；交通环境与交通安全等研究方向，培养的学生既有扎实的专业基础理论知识，又有丰富的工程实践经验，能在国家与省、市的交通其相关部门从事智能交通、交通工程设计、交通运输规划、交通监控系统开发、交通基础设施建设等领域工作或进入博士阶段学习，得到用人单位重用和社会的好评。

As the first road and city traffic specialty for master degree, this specialty lie the advanced level among the similar specialties and began incept students from 2000. There are 5 research directions of intelligent road traffic control and management, intelligent traffic information system, traffic programming and management, traffic environment and security, traffic system modeling and stimulation. With the stability theoretic knowledge and abundant practice experience, all graduates with master degree have the opportunity to go to study for doctoral degree, or to do work in these aspects of intelligent traffic, traffic engineering design, transportation programming, traffic control development, traffic establishment construction and so on.

本专业自2000年开始招生，是华南地区最早的以公路交通和城市道路交通为研究对象的硕士专业，处于国内同类专业的先进水平，先后开设有智能道路交通控制与管理；智能交通信息系统；交通规划与管理；交通系统建模仿真；交通环境与交通安全等研究方向，培养的学生既有扎实的专业基础理论知识，又有丰富的工程实践经验，能在国家与省、市的交通及其相关部门从事智能交通、交通工程设计、交通运输规划、交通监控系统开发、交通基础设施建设等领域工作或进入博士阶段学习，得到用人单位重用和社会的好评。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

Can think that road traffic safe program is government and its function department is , make the personal casualties of road traffic accident lose with property in program issue fall to the goal intended, determine in the traffic safe measure and action and its enforcement that person, vehicle, road and environment should adopt with the aspects such as management sequential, it is different levels people's government and its function department science develop the road traffic at will sexual major basis and important means of blindness of working and preventing road traffic safely working decision safely , it is strategy and the direction of road traffic safe development, have the scientificness of guaranteeing road traffic safe management and avoid decision fault before Zhan sexual role, have important strategic meaning for preventing road traffic accident.

可以认为，道路交通安全规划是政府及其职能部门为使道路交通事故的人员伤亡和财产损失在规划期内降至预定的目标，确定的在人、车、路、环境和管理等方面应采取的交通安全措施和行动及其实施时序，是各级人民政府及其职能部门科学开展道路交通安全工作、防止道路交通安全工作决策的随意性和盲目性的主要依据和重要手段，是道路交通安全发展的方向与战略，具有保证道路交通安全管理的科学性及避免决策失误的前瞻性作用，对预防道路交通事故具有重要的战略意义。

The first step is to eliminate all kinds of noises generated in the process of collecting traffic video by means of median filter; Then we finish image sharpening with Laplace operator to clarify edges of the video images; finally, image contrast is enhanced with the help of the second-developing packet SDK-2000, which is provided by our video-collecting card. This way, much more satisfactory images are obtained, and preparation is already made for the following work, thats image analyse.Thirdly, according to the characteristics of our system, mobile objects are distinguished by means of image difference. Then some features such as regional area, length and width of traffic objects are selected and extracted. After processing of scale filter, we successfully recognize those moving vehicles appearing in the monitoring regions.Fourthly, some corresponding algorithms are brought forward to automatically identify those familiar traffic peccancies of many sorts, such as red light violation, yellow-line covering, parking in prohibited spots, over-speed running and converse running. Then we find means to snap pictures and to intercept videos of the spot, and collect a lot of relevant information such as the time, the block, the running direction and the weather conditions and so on. According to this information, our traffic management departments could make correct decisions on punishing those drivers who have broken the traffic rules.Considering the complexity of traffic environments on particular blocks, in order to monitor other traffic peccancies effectively, we also have designed the scheme to carry out traffic monitoring by manual.

首先运用中值滤波法对视频图像进行去噪处理，然后采用二阶差分法进行图像锐化，再通过视频捕获卡携带的二次软件开发包SDK-2000进行对比度增强，从而得到比较理想的图像，为后续的图像分析工作做准备；第三，根据系统特点，通过背景图像差分法，分割出监测区中的运动目标，然后对交通目标的区域面积、长度和宽度等进行特征提取，再经过尺度滤波处理，从而自动识别出机动车辆目标：第四，分别设计相应的算法，实现对闯红灯、压黄线、违章停车、违章超速及违章逆行等常见的交通车辆违章行为的自动识别，并自动抓拍违章现场，截取违章视频，采集其它相关违章信息，为交通执法部门进行交通违章处罚提供有力依据：考虑到特殊路段特殊环境下的交通复杂性，为了有效监控其它类型的交通违章行为，本文还设计并实现了对交通违章的手动监控模式。

This study and relevant works are the second year of a five-year on-the-job training program (from January 1, 2002 through November 15, 2006),Major outcomes coming from this project include:(1) Collection and review to the experiences of domestic traffic engineering training programs in the past.(2) The planning of training course schedule, and the collection and presentation of modern traffic engineering technologies (i.e. use a World-wide Web established last year and its website: www.trafficwin.com).(3) To perform surveys to those traffic engineering officials, professors teaching at colleges and universities, chiefs at well-known traffic consultants companies so as to realize who will fit to be our courses' lectuers and establish a lectuers database in the traffic-engineering field.(4) Based on the responses of trainees and trainers, lots of teaching and learning conditions, reviews, and suggestions have been gathered for further reviewing.(5)For the long-term development, the website "Traffic Engineering and management" had replan by used the NUKE website program and phpBB forum program, and accomplishing the correcting.(6)An analysis of the establishment of national traffic engineering training education framework combined with a professional transportation knowledge bank have been done and presented to the Ministry of Transportation and Communication for further consideration and even implementation.

本计画承续自九十一年度起一项为期五年（自民国91年1月1日至民国95年11月15日），由交通部运输研究所办理的委办研究计画「交通工程人才培训计画」，今年为第二期的计画工作期，主要办理完成的工作项目包含：（1）收集、回顾与检讨过去相关之培训课程办理经验；（2）本期培训课程之规划与办理方式，以及交工科技新知之搜集与呈现（延续去年方式采网站资讯公布，网址为：www.trafficwin.com）等项目；（3）针对各县市交通局交通工程管理人员、各大专院校教授交通工程相关课程之教授以及国内知名交通顾问公司主管人员发放「课程讲师人选调查」问卷，详细收集各课程适任之讲师人选，建立一交通工程领域之讲师资料库；（4）依据参与培训课程学员之反应及规划团队之深入分析，整理归纳出本期培训课程之办理情形、相关检讨及心得建议；（5）为「交通工程与管理」网站之长期发展，将网站的架构与程式重新应用nuke网站程式与phpBB论坛程式规划，并改版完成；（6）针对未来培训课程之办理方式、课程内容及教学架构，由参训学员及专家学者直接提供改善之意见，以做为后续计画办理之重要参考与依据。

Based specialized, generalized and visualized basic geographical information, it collects many information, such as detected video, traffic control signal, traffic peccancy, policemen distributing, traffic target, stopping position and capacity, to general manage and analyze. The primary visualized decision information including traffic flux, bus speed, traffic density, accident of real-time cities main road, are provided to traffic manager so that they respond rapidly, and some of them could be transformed to traffic inducing screen through network.

系统设计目的：建成一个基于网络环境的实时的、可视化的交通管理地理信息系统服务平台，它以专业化的、综合性的、可视化的基础地理信息为基础，综合集成现有系统，将监控视频，交通控制信号、交通违章监控等实时动态信息以及警力分布、交通标志、停车场位置及容量等各种数据采集起来，进行集中管理和分析，为交通管理者提供实时的城市各主要道路的交通流量、车速、交通密度、事故发生情况等可视化初级辅助决策信息，以便交通管理人员做出快速响应，也可将部分信息通过网络主动发布到交通诱导屏。

This article introduced the general situation of the domestic and international ice jam research and the necessity of the water level research firstly. In succession, discussed the formation condition and the formation process of the ice cover in detail, the ice jam formation mechanism and the general regulation of development in the space, the water level variety process that caused by ice jam, factors that influence the ice jam water level: the river power factor, the thermodynamic energy factor, the water current dynamical factor and artificial factor etc..

文章首先介绍了国内外冰情研究的概况以及进行冰塞水位研究的必要性，接着，详细论述了冰盖的形成条件及形成过程，冰塞的形成机理及冰塞在空间发展的一般规律，由冰塞所引起的水位变化过程，影响冰塞水位的河势因素、热力因素、水流动力因素及人为因素等。

Basing on the ice jam flood of Heilongjiang River and disaster in history records,the ice jam flood situ- ation,hydrological and river way characteristic are proposed in this paper,the cause of ice jam flood and develop- ment of forecasting are analyzed,the ice jam flood disaster and protect methods are introduced.

根据历年冰坝凌汛及灾害调查资料和观测成果，综述了黑龙江上游历年冰坝凌汛发生情况，冰坝河段水文气象特征和河道特性，分析了冰坝成因研究和预报方法的进展，并阐述了冰坝凌汛灾害和防治措施。

This paper simulates how the additional flutter signal impacts on oil pressure and actuator output when the dead zone is kept. The proper principle of flutter signal for jam diagnosis is given. Based on the given flutter signal, different jams caused by jam of the EH servo valve under different operating condition are simulated and the output of the oil pressure and actuator are presented. Meanwhile, waving threshold of the oil pressure for jam diagnosis is given. The simulations and analysis prove that the jam fault identification of the EH servo valve based on flutter signal is feasible.

在应用附加振颤信号防止和识别卡涩故障的前提下，确定了振颤信号的选取原则，并采用仿真的方法深入探讨了3种变工况条件下不同卡涩程度对电液转换器油压和油动机输出的影响，提出了油压阈值的卡涩判断标准，论证了基于振颤信号幅值与频率响应监测电液转换器卡涩故障诊断方法的可行性。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。