Three intersection functions,such as adjacent node set,node-arc angle set and connected node set,were presented,and based on the shortest path method proposed by Dijkstra,a road guide sign model was built by using the intersection functions.

結(jié)合路網(wǎng)的拓?fù)浣Y(jié)構(gòu)黄片在线高清免费观看，定義了用于確定指路標(biāo)志的狀態(tài)函數(shù)集日韩欧美一区二区在线，給出了3個描述路網(wǎng)拓?fù)涮卣鞯?strong>交叉口函數(shù)：鄰近結(jié)點(diǎn)集网站色色的、結(jié)點(diǎn)-弧段夾角集和連通結(jié)點(diǎn)集pp.com午夜，基于Dijkstra最短路徑的思想，運(yùn)用交叉口函數(shù)建立了城鎮(zhèn)指路標(biāo)志的標(biāo)識模型：以待標(biāo)識城鎮(zhèn)為中心欧美一级a大片在线观看，在城鎮(zhèn)的影響區(qū)域內(nèi)黄色十八岁网站，通過向外搜索交叉口鄰近結(jié)點(diǎn)集來確定指路標(biāo)志的設(shè)置，并使每個結(jié)點(diǎn)上標(biāo)識的路徑都是最優(yōu)的精品人成视频免费国产。

Firstly, this paper introduces the domestic and foreign present research situation and correlative knowledge, proposes the method of traffic organization optimal and plan estimate; Secondly, this paper depicts signalized intersection organization optimum detailed from method of transit, channelization design and signal design, namely carries on the synthesis optimization design, makes every effort to optimize for the signalized intersection traffic organization provides some scientific, comprehensive and practical theory and method.

論文首先介紹交通組織優(yōu)化國內(nèi)外研究現(xiàn)狀及相關(guān)的基礎(chǔ)知識欧美性人成三级视频，提出了交通組織優(yōu)化的思路和優(yōu)化方案的效果評價方法；其次對信號交叉口交通組織優(yōu)化從交叉口放行方法欧美久草、交叉口渠化方法和交叉口信號設(shè)計(jì)方法三個層次予以詳細(xì)闡述日韩在线综合自拍视频网站免费，即進(jìn)行綜合優(yōu)化設(shè)計(jì)，力求為信號交叉口的交通組織優(yōu)化提供一些科學(xué)别揉我奶头视频一区、全面和實(shí)用的理論和方法亚洲全网黄色网站。

Based on reconstruction example of Fushan Longjiang Town 325 national highway for which at-grade channelizing design is used for the intersections, described hereby are the applicability of channelized intersection, the features of channelized intersection such as the great carrying ability, less cost etc which would raise greatly the safety of vehicles and pedestrians, as well as the key points for the design of channelizing reconstruction of at-grade intersection.

1工程概況佛山市順德區(qū)龍江鎮(zhèn)325國道交叉口位于龍江鎮(zhèn)的西南部，由325國道黄色网站操一操、龍洲路理论片235影院、沙龍路3條干道交匯而成，屬X型交叉口欧美一级裸体视频在线观看。3條道路的紅線寬度均為70m看中国免费黄色视频A，橫斷面布置，325國道為雙向八車道电影一区小说区偷拍区，龍洲路欧美熟女高潮、沙龍路為雙向六車道。該交叉口原來是環(huán)形交叉口形式尤物视频在线网址，在交叉口中央設(shè)置了一個直徑60m的中心環(huán)島国产色一区二区免费视频，駛?cè)?strong>交叉口的車輛一律繞環(huán)島作逆時針單向行駛。

Concept of compound geometric design for at-grade intersection is presented, and in functional, economic and environmental concept's way at-grade intersection's geometric design is elaborated. Qualitative and quantitative research is provided for intersection's channelized and flared design, including detailed analyses for pocket lane, crossway and traffic island. When conventionally channelized design of signalized intersection isn't possible or these effects are poor, an unconventional geometric design for intersection is brought out and 5 kinds of modes are systematically studied. An example is illustrated to urban signalized intersection compound design's splendid future and deep importance.

對平面交叉口提出復(fù)合型幾何設(shè)計(jì)理念欧美一级爱爱视频一区二区，從功能理念乱人伦中文视频在线一区二区三区、經(jīng)濟(jì)理念和環(huán)境理念出發(fā)研究信號交叉口的幾何設(shè)計(jì)，對交叉口拓寬渠化設(shè)計(jì)中關(guān)鍵技術(shù)環(huán)節(jié)（專用車道亚洲最大黄网欧美在线、人行橫道和交通島）進(jìn)行詳細(xì)定性和定量分析国产免费黄色视频一区二区三区；針對不允許進(jìn)行渠化設(shè)計(jì)或渠化設(shè)計(jì)效果不佳的信號交叉口，結(jié)合交叉口的相關(guān)道路設(shè)施提出了非傳統(tǒng)設(shè)計(jì)方法黄色网站日韩，并建立和分析了典型的5種非傳統(tǒng)設(shè)計(jì)模式久久国产精品高跟丝袜美腿；同時結(jié)合事例說明復(fù)合型幾何設(shè)計(jì)理念在城市信號交叉口設(shè)計(jì)的嶄新前景和重要意義

Relative to section of urban road, traffic characteristic of intersection is morecomplex, because of conflict, crossing, weaving, diffluence and confluence in allkinds of traffic flows.

摘要相對于道路路段而言，交叉口由于車流的轉(zhuǎn)向而引起的各種車流之間的沖突50,60,70老熟妇视频、交叉欧美激情1、交織、分流欧美日韩精品视频一区在线看、合流等行為使交叉口的交通特性比較復(fù)雜黄性视频在线，交叉口往往成為城市交通暢行與否的關(guān)鍵點(diǎn)。

As is well known, Intersections are the bottlenecks of urban road network. A lot of traffic accidents and jams occur at the intersection and hereabouts.

交叉口是城市道路網(wǎng)的瓶頸，很多事故發(fā)生在平面交叉口及其附近国产精品无码毛片，多數(shù)的交通擁堵現(xiàn)象也發(fā)生在交叉口附近三级黄色美女网站。

Traffic signal control system Settings in each intersection signal lights color control parameters, to signal under the control of the intersection in all directions of traffic flow in the intersection of the stalled minimum delay time, and in a number of intersection signal chain control , To seek optimal within the region, to further improve vehicle operating conditions, making pollutant emissions reduced.

交通信號控制系統(tǒng)通過在每個交叉口設(shè)置色燈信號控制參數(shù)，使其信號控制下的本交叉口所有方向的交通流在交叉口的停頓延誤時間最小凹凸视频黄色网站在线观看，以及在多個交叉口信號聯(lián)鎖控制時美女被cao喷水视频在线观看，尋求區(qū)域內(nèi)最優(yōu)，進(jìn)而達(dá)到改善機(jī)動車運(yùn)行工況亚洲欧美国产一区二区三区，使得污染物排放量降低。

In order to relieve urban traffic congestion and the supply-demand contradiction of oversaturated intersection group,based on the idea and method of system engineering,model oversaturated intersection group system which is composed of oversaturated intersection subsystem,through system function analyzing,identify the optimization object of system function,establish the optimization model of oversaturated intersection group,present solving strategy of the optimization model,achieve global optimization of oversaturated intersection group system.

為緩解城市交通擁堵以及過飽和交叉口群的交通供需矛盾国产91色综合九九免费，基于系統(tǒng)工程的思路和方法91精品露脸在线观看，構(gòu)建了由過飽和交叉口子系統(tǒng)構(gòu)成的過飽和交叉口群系統(tǒng)模型，并通過系統(tǒng)功能的分析真实国产激情在线观看视频免费下载，明確了系統(tǒng)功能的優(yōu)化目標(biāo)色av资源，建立了過飽和交叉口群系統(tǒng)優(yōu)化數(shù)學(xué)模型，并提出了優(yōu)化模型的求解策略久久中文字幕人妻丝袜，以實(shí)現(xiàn)過飽和交叉口群系統(tǒng)的全局最優(yōu)化日本视频高清WWW。

To facilitate this review an S-Paramics model was used to test several options. These options included removing signals at some junctions while relating pedestrian crossings, adding signals at a currently un-signalised junction, implementing active signal control and, finally, building a roundabout to replace a major signalised junction.

現(xiàn)使用S-Paramics模型對各種改善措施進(jìn)行測試，包括1）把部分信號化交叉口改為非信號化交叉口欧美α片在线高清视频观看；2）對一個非信號化交叉口信號化免费在线看a片视频网址；3）實(shí)行主動信號控制；4）把一個主要信號交叉口改為環(huán)型交叉口等91av免费。

On the basis of this, this article founded the system of signal control theory at Cross Roundabout. This theory system includes the roundabout capacity model, cycle length model, changed interval model, phase model and the range of applicability of this theory.

并在此基礎(chǔ)上建立十字環(huán)形交叉口信號控制的理論體系精品色哟哟一区二区，并建立和完善了十字環(huán)形交叉口環(huán)島容量的模型、十字環(huán)形交叉口信號周期的模型操操操操操操操网、信號控制相位的確定方法白嫩丰满大乳美女在线观看、綠燈間隔時間的模型以及十字環(huán)形交叉口信號控制理論的適用范圍。