本文選題：微觀交通仿真 + 路網(wǎng)模型��； 參考：《浙江大學》2015年碩士論文

【摘要】：隨著社會經(jīng)濟的發(fā)展,交通供需矛盾不斷激化,已嚴重制約著城市的發(fā)展。由于道路交通系統(tǒng)是一個復雜的巨系統(tǒng),單獨的理論研究或實驗方法都不能很好的勝任,而微觀交通仿真方法以個體車輛為研究對象,模擬車輛與車輛、車輛與環(huán)境之間的相互作用,從而再現(xiàn)交通流的真實狀態(tài),展現(xiàn)交通控制策略的實施過程,成為解決這類現(xiàn)實問題的有效實驗工具和探索方法。文章在研究學習國內外微觀交通仿真現(xiàn)狀的基礎上,完整設計并實現(xiàn)了一個微觀交通仿真平臺,該平臺面向高速公路和城市路網(wǎng)的交通仿真,具備高度的擴展性,可根據(jù)實際需求不同靈活增減功能。概括起來,平臺的內容包含以下這些：首先,文章定義了路網(wǎng)的內存模型,通過Lane/Edge/Road三層結構來描述現(xiàn)實中復雜的路網(wǎng)結構和交通規(guī)則約束下的路網(wǎng)連通性狀態(tài)。其次,文章實現(xiàn)了兩個模型用來模擬駕駛員駕駛車輛的行為,其中跟車模型(CFM)控制車輛的縱向運動行為,換道模型(LCM)控制車輛的橫向運動行為,兩者分別解決車輛受其他車輛和環(huán)境影響下的車速變化和車道選擇問題。然后,文章實現(xiàn)了一個微觀交通模擬器,模擬器把某個時間點上整個交通系統(tǒng)的狀態(tài)集合看作一幀,結合CFM和LCM返回的結果,模擬器并行、迭代計算每一幀,從而持續(xù)更新整個交通系統(tǒng)的狀態(tài)。接著,文章實現(xiàn)了完整的車輛生命周期控制,共3個部分7種狀態(tài)。除了車輛行駛模擬部分外,還包括：車輛初始化部分,完成車輛的創(chuàng)建和屬性初始化,同時提出一種在交通規(guī)則約束下的最低代價路徑計算算法；車輛插入與回收部分,實現(xiàn)高級的車輛進入、離開路網(wǎng)的控制邏輯。最后,作為一個平臺,文章提供了多種接口和功能擴展機制,為了在提供擴展性的同時保證性能,文章還實現(xiàn)了一個專用的容器和一套高效的事件觸發(fā)機制。
[Abstract]:With the development of social economy, the contradiction of traffic supply and demand is becoming more and more intense, which has restricted the development of the city. Because the road traffic system is a complicated giant system, the single theoretical research or experimental method can not do well. However, the microscopic traffic simulation method takes individual vehicles as the research object, and simulates vehicles and vehicles. The interaction between vehicle and environment can reproduce the real state of traffic flow and show the implementation process of traffic control strategy. It becomes an effective experimental tool and exploration method to solve these practical problems. On the basis of studying the present situation of micro traffic simulation at home and abroad, this paper designs and implements a micro traffic simulation platform, which is highly extensible for traffic simulation of freeway and urban road network. Can according to the actual demand different flexible increase or decrease function. To sum up, the contents of the platform include the following: firstly, this paper defines the memory model of the road network, and describes the complex road network structure and the road network connectivity behavior under the constraints of traffic rules through the Lane/Edge/Road three-layer structure. Secondly, two models are implemented to simulate the driver's driving behavior, in which the following model (CFM) controls the longitudinal motion of the vehicle, and the change of track model (LCM) controls the lateral movement of the vehicle. They solve the problem of vehicle speed change and lane selection under the influence of other vehicles and environment respectively. Then, a micro traffic simulator is implemented. The simulator regards the state set of the whole traffic system at a certain point as a frame. Combined with the results returned by CFM and LCM, the simulator computes each frame in parallel and iteratively. Thus continuously updating the state of the entire transportation system. Then, the paper realizes the complete vehicle life cycle control, which consists of 3 parts and 7 states. In addition to the vehicle driving simulation, it also includes the vehicle initialization part, which completes the vehicle creation and attribute initialization. At the same time, it proposes a minimum cost path calculation algorithm under the traffic rules constraint, and the vehicle insertion and recovery section. Achieve advanced vehicle entry and exit road network control logic. Finally, as a platform, the paper provides a variety of interfaces and function extension mechanisms. In order to provide scalability while ensuring performance, the paper also implements a special container and a set of efficient event trigger mechanism.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U491;TP391.9

【參考文獻】

相關期刊論文 前2條

1 關羽;穆巖;楊小寶;;微觀交通仿真中換道模型的研究綜述[J];交通與計算機;2008年05期

2 鄒智軍;;新一代交通仿真技術綜述[J];系統(tǒng)仿真學報;2010年09期

相關碩士學位論文 前1條

1 楊立榮;城市道路交通流微觀仿真系統(tǒng)研究與實現(xiàn)[D];西南交通大學;2009年

，

本文編號：1883247