traffic flow speed 中文意思是什麼
traffic flow speed
解釋
車流流速-
A good, free speed network monitoring software, it can monitor your current network speeds and upload and download includes the real - time speed and a beautiful chart, or figures out ( to support both also choose to show or show only a ), support adsorption of the screen ' s edges, obviously thoroughly support show monitoring window, penetrating mouse support functions ( embedded desktop ) and the functional and cross - fade out, would not affect other software applications and support custom color graphics and font support day - to - day, week, month statistics and limit traffic flow
一個不錯且免費的網路速度監測軟體，它可以監測你當前網路速度，包含上傳及下載的實時速度，並以漂亮的圖表或數字顯示出來（支持選擇兩種方式同時顯示或只顯示一種） ，支持吸附到屏幕邊緣，支持透明顯示監測窗口，支持鼠標穿透功能（嵌入桌面）及淡入淡出功能，不會影響日常其它軟體應用，支持自定義圖表和字體顏色，支持按日，周，月統計流量並限制流量。 -
In the fourth chapter, we consider the effect of bus stations on traffic flow. by numerical simulations, we attain the idea results. in the fifth chapter, a multi - speed ca traffic flow model on the one - dimen - sional urban main road on the control of traffic lights is proposed to simulate the traffic under the open boundary conditions
最後，建立一個交通燈控制下城市主幹道單車道多速元胞自動機交通流模型來模擬在開放性邊界條件下現實城市主幹道交通的車流運動，通過延遲來調整交通中紅綠燈對主幹道車流量的控制，並研究了在交通燈延遲控制下綠信比、交通燈個數對主幹道交通流的影響。 -
In principle, ultrasonic sensors are suspended over a road, which keep emitting pulse signals periodically to nearby and feed back waves to decide existence of any obstacles, thus to detect the speed, height, length, different sizes ( heavy, medium and small ) of moving vehicles and accumulative flow as well as length of motorcade. optionally, it can be applied to multitude driving lanes simultaneously for traffic data. by integrating and analyzing these measured data, the necessary figures concerning traffic flow may be obtained, which are fundamental basis guiding road buildings
本課題設計的是一種懸掛式超聲波車流多信息檢測器，通過懸掛于路面上方的超聲波探頭向路面周期性地發射脈沖信號，利用地面回波來判斷遮擋物地存在，可用於檢測行駛中的機動車車速、車高、車長、大中小分型以及累計車流量、車隊長度等信息，並可用於多個車道車流信息的同時檢測，綜合這些測量參數可獲得車流量的必要數據，可為公路建設提供必要的基礎依據。 -
Second, we introduce a two - lane traffic model which is based on the ( 0, 2 ) and ( 0, 1, 2 ) models. we mainly study the coupling effect of lanes. in two - lane traffic, vehicles can change lanes and overpass. the interactin between lanes is considered as coupling effect. the computer simulation indicate that ( dthe current of the system with cupling is greater than that without coupling ; 0for a certain initial density, the average flow and speed are indepent on the coupling coefficient which is greater than zero ; when the initial densities ( speeds ) of lanes are different, the characters of traffic system will be different
在單車道模型的基礎上，建立v _ （ max ） = 2雙車道模型，研究車道的耦合效應。雙車道模型中車輛可以進行轉道、超車，兩道之間有耦合作用。模擬結果說明，有耦合時系統的流量比沒有耦合時大；在固定的初密度條件下，只要耦合系數b 0 ，兩道間的耦合強弱對流量和速度無影響；兩道初密度分佈不均勻和速度分佈不均勻都能使交通系統特性發生變化。 -
From the viewpoint of macro dynamic characteristics of freeway traffic flow, this paper classifies the freeway, gives a nonlinear macro dynamic traffic flow model of freeway using density and speed as state variables and then identifies the parameters by using searching approach step by step, finally gives an identification instance
摘要從高速公路交通流的宏觀特性和動態特性出發，對高速公路進行了兩級分段，以車流密度和車流速度作為狀態變量，給出了高速公路非線性的宏觀動態交通流模型，進而採用直接搜索法對模型中的參數進行了分段辨識，並給出了辨識實例。 -
Alleviate congestion by reducing bottlenecks through the use of traffic signal control, speed control, lane control and ramp control systems. these will help maintain constant speeds and improve the overall flow of traffic over the entire road network
運用交通訊號管制、車速管制、車道管制及斜道車流管制系統，減少樽頸路段，從而紓緩交通擠塞的情況。這樣便可維持穩定的車速，令整個道路網路的整體交通更加暢順。 -
With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value
本文從控制理論的角度出發，針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分（ pi ）控制器結構的擁塞控制理論和方法，在單個節點的交通流的模型基礎上，運用控制理論中的系統穩定性分析方法，討論如何利用信終端節點緩沖佔有量的比例加積分的反饋形式來調節信源節點的能控交通流的輸入速率，從而使被控網路節點的緩沖佔有量趨于穩定;同時使被控網路節點的穩定隊列長度逼近指定的門限值。 -
Based on traffic flow theory, speed and density is used to describe traffic movement
摘要以交通流理論為基礎，用車速和車流密度來描述車流的運行狀態。 -
By the correlative analysis of the crash data, traffic flow and speed data of an area, traffic flow is found to be the most important variable to decide the crash frequence without casualty. but injured and fatal accidents frequency is more influenced by speed and some other factors like psychology of drivers than traffic flow
本文通過對一個區域內的事故數據和流量、速度數據進行分析，發現區域內輕微事故的發生頻率受交通流量大小的影響較大，而造成人員傷亡的一般事故和重大事故則受流量影響較小，受速度及其它因素影響較多。 -
Based on the comprehensive analysis of the road traffic flow ' s characteristics due to the bus stop without bus bay, the multivariate linear models of the speed and the headway are formed with the variables of the stop frequency, the stop time, the overall length of the stop and its reserve time of the bus and the vehicle flow applying the software of excel, and then the strict mathematical checks are made
文章首先比較全面地分析非港灣式公交停車影響下道路交通流特徵，然後藉助于excel軟體，構建關于公交停車頻率、公交停車時間、最大公交停車長度及其存在時間、道路流量的車速和車頭時距多元線性模型，並進行了嚴格的數學檢驗。 -
The research provides important reference for analyzing the segment traffic flow reasonably and computing the speed and the headway exactly
該研究為合理分析路段交通流狀況、正確計算區間行駛車速與車頭時距提供了依據。 -
Specifically, we present a full velocity difference ( fvd ) car - following model, a cellular automata ( ca ) model that considers the velocity effect of the preceding car, another ca model that can describe the synchronized flow, and a speed gradient ( sg ) macroscopic model which can describe the anisotropic properties of traffic flow
具體地說，我們提出了一種全速度差車輛跟馳模型，一種考慮前車速度效應的元胞自動機模型，另一種能較好模擬同步流的元胞自動機模型，以及一種能體現交通流各向異性特徵的速度梯度宏觀連續模型。 -
According to the hydrodynamic theory, the interconnected characteristics of the highway traffic flow to the low - speed flow of pavement maintenance equipments are studied, and the traffic conflict characteristics of low - speed flow of pavement maintenance equipments to the high - speed traffic flow are analyzed
摘要藉助流體流量連續理論，分析了高速交通流與養護施工作業設備的關聯特性，以及養護施工機械設備機群低速流與高速公路高速交通流的沖突特徵。 -
In order to reduce the communication time between the high - speed and low - speed flows in 2d space, and to get the optimum interconnecting control of traffic flow to the highway pavement maintenance, the fluid characteristic parameters are utilized to appraise traffic conflict trend
基於減少高速流和低速流在二維空間上的交匯時間，實現高速公路路面養護與交通流關聯最佳控制的要求，應用管道流變特性參數解釋高速公路養護作業產生的交通沖突特徵，建立了控制施工作業設備與高速交通流的數學模型。 -
Silver harbour hotel in guangzhou s baiyun mountain area has beautiful scenery, fresh air, the vision, to facilitate traffic flow is, from the guangzhou east train station through train station - 9 only 10 minutes away, one high - speed guangzhou airport, 35 minutes to reach the airport, 25 minutes to pazhou new transactions assembly hall
廣州銀海港賓館位於風景秀麗的白雲山腳下，空氣清新，視野開闊，交通十分便利，距廣州火車東站廣九直通車站僅十分鐘路程，鄰廣州機場高速， 35分鐘可達機場， 25分鐘可達琶洲新交易會館。 -
We discuss the new highway model and intelligent control method. we model the urban highway traffic flow and design a multi - variables control strategy with both the on - ramp control and the road speed control by the ann technique. the developed adaptive neural controller is to control the traffic density and force it to follow a desired one
利甩人工神經網路技術建立了城市間高速公路的神經網路模型?並提出了入只匝道放行和路段速度控制相結合的多變量神經網路控制策略，利用診珍制策略建立的自適應神經網路控制器，可以使高速公路上的密度維持在理想值附近。 -
The paper analyzes in detail the hidden defect of public security and traffic police network structure and security ; to use the zero - copy technology to snatch all the network packages under the high ? speed network ; to use multi - protocol analysis and reduction technology to solve the bottleneck, the heavy flow of network information protocol analysis and reduction
本文詳細分析公安交警網路結構和網路安全隱患;運用零拷貝技術解決高速網路下獲得所有的數據包問題;運用多協議分析與還原技術解決網路信息大流量協議分析還原這一瓶頸問題。 -
In the past, the hot point is the macroscopic model, which discusses the relationships among the traffic stream variables - speed, flow and density
以前的研究主要集中於宏觀模型，討論交通流量及密度的變化。
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