本文選題：可變限速標(biāo)志　切入點(diǎn)：投資優(yōu)化　出處：《計(jì)算機(jī)應(yīng)用研究》2016年12期

【摘要】：針對快速路可變限速標(biāo)志投資缺乏系統(tǒng)的定量分析、位置模糊問題,基于改進(jìn)元胞傳輸模型構(gòu)建了階梯形限速投資模型。首先,對限速控制的改進(jìn)元胞傳輸進(jìn)行了描述;然后,為實(shí)施階梯形限速控制,引入了0-1整數(shù)規(guī)劃算法和限速約束條件;最后,利用遺傳算法優(yōu)化了投資額一定時(shí)可變限速標(biāo)志位置以及動態(tài)限速值。算例結(jié)果發(fā)現(xiàn),隨著投資額增大,平均臨界密度標(biāo)準(zhǔn)差、飽和度會減小,車輛運(yùn)行速度會提高,但同時(shí)效益生產(chǎn)量會隨之降低,系統(tǒng)平均延誤會隨之增大。結(jié)果分析表明,該模型能夠有效解決可變限速標(biāo)志投資優(yōu)化問題。
[Abstract]:In view of the lack of systematic quantitative analysis and fuzzy location of the variable speed limit sign investment in expressway, a stepped speed limit investment model is constructed based on the improved cellular transmission model.Firstly, the improved cellular transmission of speed limit control is described. Then, in order to implement the step speed limit control, the 0-1 integer programming algorithm and the speed restriction condition are introduced.Genetic algorithm is used to optimize the variable speed limit mark position and the dynamic speed limit value when the investment is fixed.The results show that with the increase of the investment, the average critical density standard deviation, the saturation will decrease, the vehicle speed will increase, but at the same time, the benefit production will decrease, and the average system delay will increase.The results show that the model can effectively solve the investment optimization problem of variable speed limit sign.
【作者單位】： 上海理工大學(xué)管理學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(70672110) 上海市(第三期)重點(diǎn)學(xué)科項(xiàng)目(S30504) 上海市教委科技創(chuàng)新項(xiàng)目(10YS105)
【分類號】：U491.52
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本文編號：1723201