基于車速引導的交叉口公交優(yōu)先多申請優(yōu)化控制模型
發(fā)布時間：2018-09-08 18:37
【摘要】：為了解決交叉口高飽和以及公交優(yōu)先多申請導致的公交優(yōu)先效果不佳的難題,考慮公交運行車速可以引導調(diào)節(jié)的環(huán)境,以公交車的延誤與停車次數(shù)加權(quán)最小為目標,以周期時長和相位飽和度為約束條件,將每輛公交車的車速調(diào)整量和交叉口信號相位時長一起作為優(yōu)化變量,建立了公交車速引導和交叉口信號配時集成優(yōu)化的整數(shù)線性規(guī)劃模型。其中,采用0-1變量表示公交車停車次數(shù)以及公交車是否能夠在到達周期內(nèi)通過。分析結(jié)果表明:當交叉口高負荷,公交車到達時刻調(diào)整量上限為±8s時,與背景信號配時相比,車速優(yōu)化模型的公交車人均延誤減少14.35s(降低27.71%),停車次數(shù)減少1次(降低14.29%);信號優(yōu)化模型的公交車人均延誤減少12.39s(降低23.93%),停車次數(shù)減少1次;而所提出的集成優(yōu)化模型可以使公交車人均延誤減少40.68s(降低78.56%),停車次數(shù)減少3次(降低42.86%),超過單方面信號優(yōu)化與單方面車速引導產(chǎn)生的公交優(yōu)先效果之和;即使考慮到信號配時與車速引導相結(jié)合,但是采用先到先服務的方法只能使公交車人均延誤減少17.29s(降低33.39%),停車次數(shù)減少1次。當交叉口飽和度過高,信號配時調(diào)整余地不大時,可以通過適當增加公交車車速調(diào)整量達到理想的公交優(yōu)先效果。
[Abstract]:In order to solve the problem of high saturation at intersections and poor effect of bus priority caused by multiple applications for bus priority, considering the environment in which bus speed can be guided and regulated, the speed adjustment of each bus is taken into account with the objective of minimizing the weighting of bus delay and parking times, and the constraints of cycle length and phase saturation. An integer linear programming model for integrated optimization of bus speed guidance and signal timing at intersections is established, in which 0-1 variable is used to represent the number of bus stops and whether the bus can pass in the arrival cycle. When the upper limit of time adjustment is 65507 In order to reduce bus delays per capita by 40.68 s (78.56%) and parking times by three times (42.86%) more than the sum of the priority effects of unilateral signal optimization and unilateral speed guidance; even considering the combination of signal timing and speed guidance, the first-come-first-serve method can only reduce bus delays per capita. When the intersection saturation is too high and the signal timing adjustment margin is not large, the ideal bus priority effect can be achieved by increasing the speed adjustment of the bus appropriately.
【作者單位】： 江蘇大學汽車與交通工程學院;東南大學交通學院;
【基金】：國家自然科學基金項目(51208232) 江蘇省高校自然科學基金項目(13KJB580003) 江蘇大學高級專業(yè)人才科研啟動基金項目(12JDG056)
【分類號】：U491.54
本文編號：2231355
[Abstract]:In order to solve the problem of high saturation at intersections and poor effect of bus priority caused by multiple applications for bus priority, considering the environment in which bus speed can be guided and regulated, the speed adjustment of each bus is taken into account with the objective of minimizing the weighting of bus delay and parking times, and the constraints of cycle length and phase saturation. An integer linear programming model for integrated optimization of bus speed guidance and signal timing at intersections is established, in which 0-1 variable is used to represent the number of bus stops and whether the bus can pass in the arrival cycle. When the upper limit of time adjustment is 65507 In order to reduce bus delays per capita by 40.68 s (78.56%) and parking times by three times (42.86%) more than the sum of the priority effects of unilateral signal optimization and unilateral speed guidance; even considering the combination of signal timing and speed guidance, the first-come-first-serve method can only reduce bus delays per capita. When the intersection saturation is too high and the signal timing adjustment margin is not large, the ideal bus priority effect can be achieved by increasing the speed adjustment of the bus appropriately.
【作者單位】： 江蘇大學汽車與交通工程學院;東南大學交通學院;
【基金】：國家自然科學基金項目(51208232) 江蘇省高校自然科學基金項目(13KJB580003) 江蘇大學高級專業(yè)人才科研啟動基金項目(12JDG056)
【分類號】：U491.54
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