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Using VISSIM to Calculate the Capacity of Urban Expressway Interchange

机译:使用VISSIM计算城市高速公路立交桥的通行能力

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Traffic flow at urban expressway interchanges is unique, and researchers havernused the VISSIM simulation model to calculate the capacity of such interchanges. Inrnthis paper, in order to calibrate and validate VISSIM, the measures of effectivenessrn(MOE) are put forward, the confidence intervals of parameters chosen in the VISSIMrnare calculated, and then the factors in the interval are fine tuned to meet the accuracyrnof MOE, which is the percentage of error between the simulated and observed values.rnAt last, the capacity of an urban expressway interchange in Guangzhou is calculatedrnbased on the proposed method. The validation results show that the approach torncalibration and validation is feasible.
机译:城市高速公路立交桥处的交通流量是独特的,研究人员已使用VISSIM仿真模型来计算此类立交桥的通行能力。在本文中,为了对VISSIM进行标定和验证,提出了有效性指标(MOE),计算了VISSIMrn中选择的参数的置信区间,并对区间中的因子进行了微调以满足MOE精度。最后,在此基础上,计算了广州市区高速公路立交的通行能力。验证结果表明,该方法是可行的。

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