The Impact of Traffic Density on Lane-Changing Frequency

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Author(s)
Jiang, Qian
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School of City and Regional Planning
School established in 2010
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http://hdl.handle.net/1853/70278
Abstract
Fluctuations on roadways are widely considered as an effect of lane-changing activity. Lane-changing has been recognized as microscopic behaviors and elements in lane-changing models are considered to be mostly dynamic. But lane-changing decisions can still be influenced by some traffic conditions reflected as macroscopic factors. This paper attempts to correlate microscopic models with macroscopic models by exploring the relationship between lane-changing frequency and density. A descriptive analysis is generalized to explain lane-changing behaviors as a reaction to traffic density. It is observed that the lane-changing frequency increases in the low-density region and reaches a peak around a certain density. Five simple regression models are constructed to fit the NGSIM (Next Generation SIMulation) data. Based on three statistical indicators, the cubic model is selected as the best fit for the relationship between lane-changing frequency and density.
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Date
2020-12
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Masters Project
Applied Research Paper
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