【正文】 究和應用已成為人們尋求解決城市交通問題的必然選擇。 20xx～ 20xx 年，上海市城市道路面積的年均增長速度為 %，而民用汽車數(shù)量的年均增長速度為 %。據(jù)統(tǒng)計，近年來許多城市道路面積的增長速度為 3%～ 6%，而機動車的增長速度則高達百分之十幾，單位道路面積車輛逐年上升。近幾年大城市機動車保有量急劇上升，以北京、上海為例， 20xx 年新注冊民用汽車數(shù)量分別是 20xx年的 3倍左右，其中北京 20xx年新注冊民用汽車數(shù)量達到 ， 20xx年又新增 萬輛，到 20xx 年 5月 26 日，北京市機動車保有量突破 300 萬輛，每 天上路新車達 1000 多輛，市區(qū)干道平均車速比 10 年前降低 50%，主要路口嚴重堵塞的達 60%。 導致城市交通擁堵的因素，包括機動車擁有量、道路總面積、道路布局、交通配套設(shè)施、交通管理等。其中，大城市交通擁堵問題日益突出。 關(guān)鍵詞： 智能交通系統(tǒng)，交通信息采集， GPRS 湖南工業(yè)大學本科畢業(yè)設(shè)計（論文） II ABSTRACT Recent years as more and more people buy cars, the city traffic problems bee more and obvious, and traffic jam bee more and more severe. Nowadays, our city’s foundation traffic facilities can not meet the overgrowing traffic needs. Traffic jam, low utilization rate of road work, growing traffic accidents and so on are the severe problems that our city are facing today. However, the rapid development of GPRS work technique provides a more convenient and effective munication modes. Thus this thesis proposes a plan of city intelligent transportation control system which is based on GPRS. The discourse firstly gives a brief introduction of GPRS munication technique from the aspects of the work topology and working protocol of GPRS and the characteristics and application of GPRS. Because GRPS work features in broad access range, high speed transmission, online forever, charge according flow quantity. So the writer of this paper chose GPRS work as intelligent transportation control system’s transmission work account for economy, application scope and application prospects . Then I proposed my own opinion of city intelligent transportation control system, and classify intelligent transportation system into transportation information gathering system, intelligent transportation monitor system, rapid respond system to emergencies and other subsystems. Transportation information gathering system is a key study. This thesis introduces the function and position of transportation information gathering system from the aspects of methods and detector’s choice of transportation information gathering. And also study a plan of optimization of transportation information gathering system techniques. At the end of the this paper, writer proposed an idea of the plan of intelligent transportation terminal based on GPRS, and gives a brief introduction of the work principle of vehicle terminal and several related protocols. Keywords: ITS, Transportation information gathering, GPRS 湖南工業(yè)大學本科畢業(yè)設(shè)計（論文） III 目錄 摘要 ............................................................................................................. I ABSTRACT ................................................................................................ II 第 1 章 緒論 ............................................................................................... 1 課題研究的背景和意義 ............................................................................................1 智能交通系統(tǒng)的簡介 ................................................................................................1 國內(nèi)外城市智能交通系統(tǒng)的發(fā)展 .............................................................................2 國外 ITS 的發(fā)展 ..............................................................................................2 國內(nèi) ITS 的 發(fā)展 ..............................................................................................3 本論文的主要工作 ....................................................................................................4 第 2 章 GPRS 通信網(wǎng)絡(luò)簡介 ...................................................................... 5 GPRS 網(wǎng)絡(luò)技術(shù) ..........................................................................................................5 GPRS 網(wǎng)絡(luò)總體結(jié)構(gòu) ........................................................................................5 GPRS 傳輸協(xié)議平面 ........................................................................................6 GPRS 協(xié)議 ........................................................................................................8 GPRS 的路由管理 ............................................................................................8 GPRS 的主要特點 ......................................................................................................9 GPRS 的應用 ..............................................................................................................9 第 3 章 城市智能交通控制系統(tǒng) ................................................................10 城市智能交通控制系統(tǒng) ..........................................................................................10 系統(tǒng)的功能框架 ............................................................................................10 系統(tǒng)的組成 .................................................................................................... 11 交通信息采集子系統(tǒng)的功能 ...................................................................................12 第 4 章 先進的交通信息采集系統(tǒng) ............................................................13 基礎(chǔ)交通信息采集方法研究 ..................................................................................13 靜態(tài)交通信息的采集 ....................................................................................14 動態(tài)交通信息的采集 ....................................................................................14 交通信息采集檢測器技術(shù)分析 ..............................................................................16 交通檢測器性能分析 ....................................................................................16 交通檢測器特點比較 ....................................................................................21 交通信息采集技術(shù)優(yōu)化選擇 ..................................................................................22 交通信息傳輸 ..........................................................................................................23 湖南工業(yè)大學本科畢業(yè)設(shè)計（論文） IV 交通信息發(fā)布 .....