Abstract
Lane-changing behavior in weaving segment of urban expressway in transportation engineering is a significant factor contributing to the loss of capacity. This paper attempts to analyze the statistical relationships among lane-changing, speed and density of traffic flow in different lanes of weaving segment of urban expressway under a given traffic condition and general levels of service. Based on the analysis result, a series of models is recommended. The effectiveness between the recommended models and the existing model is compared. Although the optimization effect not very clear, but the lane-changing factors have some relationship with the traffic characteristics in weaving segment of urban expressway.
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