發(fā)布時(shí)間：2018-03-27 08:34

  本文選題：信息反饋策略　切入點(diǎn)：雙通道系統(tǒng)　出處：《東北師大學(xué)報(bào)(自然科學(xué)版)》2017年04期

【摘要】：考慮到現(xiàn)實(shí)路況的復(fù)雜性,建立備選路徑路寬不同、車道數(shù)存在差異的路網(wǎng)模型,并提出了新的反饋策略——隨機(jī)度反饋策略.通過分析隨機(jī)度、平均速度、車輛數(shù)以及交通流量反饋策略對該路網(wǎng)模型交通流特性參數(shù)的影響,探究隨機(jī)度反饋策略的優(yōu)越性.仿真結(jié)果表明:隨機(jī)度反饋策略下,路網(wǎng)中車輛運(yùn)行有序,接近出口處道路上車輛排隊(duì)長度短,車輛速度大.同時(shí),通過分析平均流量隨動態(tài)車比例變化情況可知,當(dāng)動態(tài)車比例不大于0.6時(shí),平均速度、車輛數(shù)及隨機(jī)度反饋策略有效性相當(dāng);當(dāng)動態(tài)車比例大于0.6時(shí),平均速度、車輛數(shù)反饋策略下平均流量降低明顯,策略失效,而隨機(jī)度反饋策略下平均流量變化平穩(wěn),該策略能有效改善路網(wǎng)道路車輛通行狀況.
[Abstract]:Considering the complexity of real road conditions, a road network model with different road width and different lane numbers is established, and a new feedback strategy, random degree feedback strategy, is proposed. The influence of the number of vehicles and the traffic flow feedback strategy on the traffic flow characteristic parameters of the road network model is discussed, and the superiority of the random degree feedback strategy is explored. The simulation results show that under the random degree feedback strategy, the vehicles in the road network run in an orderly manner. On the road near the exit, the queue length is short and the vehicle speed is large. At the same time, by analyzing the variation of the average flow rate with the dynamic vehicle ratio, we can see that when the dynamic vehicle proportion is less than 0.6, the average speed is higher. When the dynamic vehicle ratio is greater than 0.6, the average flow rate and vehicle number feedback strategy decrease obviously, and the strategy fails, while the average flow rate changes smoothly under the random degree feedback strategy. This strategy can effectively improve the traffic condition of road network.
【作者單位】： 重慶交通大學(xué)交通運(yùn)輸學(xué)院山地城市交通系統(tǒng)與安全重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(61403052)
【分類號】：U491

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相關(guān)期刊論文 前2條

1 孫曉燕;汪秉宏;;應(yīng)用三種信息反饋策略研究含瓶頸的雙通道模型[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2009年S2期

2 田麗君;黃海軍;劉天亮;;基于動態(tài)信息反饋的日常出行決策模擬研究[J];交通運(yùn)輸系統(tǒng)工程與信息;2010年04期

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