Sensitivity analysis of optimization models for two adjacent intersections with correlated short left-turn lanes
Sensitivity analysis of optimization models for two adjacent intersections with correlated short left-turn lanes
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DOI：
10.3846/16484142.2013.829781
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发表时间：
2013-10
期刊：
影响因子：
1.7
通讯作者：
Ronghan Yao
中科院分区：
文献类型：
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作者：
Ronghan Yao
在相邻交叉口的公共路段上，有时会出现相关的左转短车道。这些较短的车道会降低进场通行能力和相互影响。在运筹学的基础上，为合理分配两个交叉口的时空资源，提出了三种多目标优化模型。由于这些模型的解依赖于它们的目标函数的具体形式，因此提出了6个可行的目标函数和相应的求解方法。其次，重点分析和比较了优化结果对参数(最小和最大循环长度)的敏感性。此外，为了验证这些模型对交通流运行的影响，结合现有的优化方案，对三个典型的优化场景进行了模拟。模型和方法以大连市中国2010年的现场数据为例进行了说明。此外，还推荐了较好的模型及其合适的参数值或范围。最后，给出了推荐模型在实际工程中的应用步骤。
The correlated short left-turn lanes sometimes exist on the common section between two adjacent intersections. These short lanes can reduce the approach capacity and impact on each other. According to operational research, three kinds of multi-objective optimization models are put forward in order to reasonably allocate the time-space resources of two intersections. Since the solutions to these models depend on the concrete forms of their objective functions, six feasible objective functions and the corresponding solution method are proposed. Next, the sensitivity of the optimization results to the parameters (minimum and maximum cycle lengths) is emphatically analyzed and compared. Moreover, to testify the effects of these models on traffic flow operations, three typical optimization scenarios are simulated together with the existing one. The models and methods are illustrated via the 2010 field data from the city of Dalian, China. Also, the better models and their suitable parameter values or ranges are recommended. Finally, the application procedure of the recommended models is given in actual engineering practice.