本文關(guān)鍵詞：基于誘導(dǎo)分區(qū)的可變信息板布設(shè)方法研究　出處：《吉林大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 可變信息板 交通誘導(dǎo)小區(qū)劃分 POI興趣點 遺傳-禁忌算法 元胞自動機(jī)

【摘要】：隨著社會經(jīng)濟(jì)的發(fā)展和城市化進(jìn)程的加快,居民生活水平提高,機(jī)動車保有量隨之迅猛增長,道路交通擁擠現(xiàn)象逐年加重,交通擁堵問題己經(jīng)成為了制約城市發(fā)展的一個重要問題。交通誘導(dǎo)系統(tǒng)作為一種智能化的交通管理手段,通過科學(xué)的方法建立誘導(dǎo)策略,可以更加合理、充分的分配和使用道路資源,而可變信息板是交通誘導(dǎo)系統(tǒng)中實現(xiàn)公眾信息服務(wù)的重要工具和手段。因此,如何合理的選擇可變信息板的布設(shè)位置,使可變信息板發(fā)揮的效用最大化成為目前需要解決的問題。本文首先,分析了交通小區(qū)劃分和可變信息板選址方法的國內(nèi)外研究現(xiàn)狀,對可變信息板選址問題做了系統(tǒng)的研究。通過分析交通規(guī)劃小區(qū)和交通控制小區(qū),定義了交通誘導(dǎo)小區(qū),并分析了交通誘導(dǎo)小區(qū)的特性,給出了交通誘導(dǎo)小區(qū)特性參數(shù)的閾值和路網(wǎng)限制;分析了路段之間的時空相關(guān)性,將路段定義為節(jié)點把路網(wǎng)映射為有向網(wǎng)絡(luò)圖,利用圖論理論對該網(wǎng)絡(luò)圖進(jìn)行分析,提出了基于隨機(jī)游走算法的交通誘導(dǎo)小區(qū)劃分方法;利用交通誘導(dǎo)小區(qū)特性參數(shù)對小區(qū)劃分結(jié)果進(jìn)行評價。其次,分析了可變信息板選址的影響因素,提出了可變信息板的選址原則;分析了POI興趣點的分類、等級和POI數(shù)據(jù)的特點、獲取方式;通過網(wǎng)絡(luò)爬蟲程序獲取研究區(qū)域的POI興趣點數(shù)據(jù);將POI興趣點對交通的影響引入選址模型中的衰減因子,構(gòu)建了新的數(shù)學(xué)規(guī)劃選址模型;提出了利用遺傳-禁忌算法求解模型的方法流程。然后,定義了相鄰誘導(dǎo)子區(qū)間的邊界區(qū)域,分析了誘導(dǎo)邊界區(qū)域的交通特性。通過分析相鄰誘導(dǎo)子區(qū)間的關(guān)聯(lián)性,確定該邊界區(qū)域是否需要布設(shè)可變信息板;利用元胞自動從微觀角度模擬城市交通網(wǎng)絡(luò),將每條路段離散為若干元胞,定義了不同路段、每類元胞的流入率、流出率和最大可容納車輛數(shù),以路網(wǎng)內(nèi)總行程時間最小為目標(biāo),根據(jù)交通流理論建立了基于元胞自動機(jī)的邊界區(qū)域可變信息板選址模型。最后,以沈陽市部分路網(wǎng)的實際數(shù)據(jù)對文中所提模型進(jìn)行驗證。通過搭建仿真模型,模擬實際路網(wǎng),對誘導(dǎo)小區(qū)進(jìn)行了劃分,并驗證了結(jié)果的準(zhǔn)確性。利用獲取到的POI數(shù)據(jù)和路網(wǎng)數(shù)據(jù),通過MATLAB編程對誘導(dǎo)子區(qū)內(nèi)的選址模型和求解算法進(jìn)行驗證,發(fā)現(xiàn)該方法與單純遺傳算法相比可獲得更優(yōu)的解。利用MATLAB編寫元胞自動機(jī)程序,對邊界區(qū)域布設(shè)模型進(jìn)行驗證,得到可變信息板的最優(yōu)布設(shè)元胞。
[Abstract]:With the development of social economy and the acceleration of urbanization, the living standard of residents has been improved, the number of motor vehicles has increased rapidly, and the phenomenon of road traffic congestion has been aggravated year by year. Traffic congestion has become an important problem restricting the development of cities. As an intelligent means of traffic management, traffic guidance system can be more reasonable through scientific methods to establish guidance strategies. Fully allocate and use road resources, and variable information board is an important tool and means to realize public information service in traffic guidance system. Therefore, how to reasonably choose the location of variable information board. To maximize the utility of variable information board has become a problem to be solved. Firstly, this paper analyzes the domestic and foreign research status of traffic district division and variable information board location method. Based on the analysis of traffic planning community and traffic control area, the traffic guidance area is defined and the characteristics of traffic guidance cell are analyzed. The threshold of the characteristic parameters of the traffic guidance cell and the network limit are given. In this paper, the spatio-temporal correlation of road sections is analyzed, and the road section is defined as the node mapping the road network to directed network graph, and the graph theory is used to analyze the network diagram. Based on random walk algorithm, a traffic guidance cell partition method is proposed. The characteristic parameters of traffic guidance area are used to evaluate the result of district division. Secondly, the influencing factors of variable information board location are analyzed, and the location principle of variable information board is put forward. This paper analyzes the classification, grade and characteristics of POI data of POI points of interest, as well as the way to obtain them. The POI interest point data of the research area are obtained by the web crawler program. The influence of POI interest point on traffic is introduced into the attenuation factor in the location model, and a new mathematical planning location model is constructed. The method flow of solving the model using genetic Tabu algorithm is proposed. Then, the boundary region of the adjacent induced subinterval is defined. The traffic characteristics of the induced boundary area are analyzed, and by analyzing the correlation of the adjacent inductive sub-region, it is determined whether the variable information board should be arranged in the boundary area. Using the cellular simulation of the urban traffic network from a microscopic perspective, each section is discretized into a number of cells, and the inflow rate, outflow rate and maximum number of vehicles are defined for different sections, each type of cell. Aiming at the minimum total travel time in the road network, based on the traffic flow theory, the variable information board location model of the boundary region based on cellular automata is established. Finally. Based on the actual data of part of the road network in Shenyang, the proposed model is verified. Through building the simulation model, simulating the actual road network, the induced community is divided. Using the obtained POI data and road network data, the location model and algorithm of the induced subzone are verified by MATLAB programming. It is found that the proposed method can obtain a better solution than the simple genetic algorithm. The cellular automata program written by MATLAB is used to verify the boundary region placement model and the optimal layout cell of the variable information board is obtained.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U491

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