重庆大学学报2025，Vol.48Issue(8)：40-53,14.DOI:10.11835/j.issn.1000-582X.2024.005
考虑换道压力增益的高速公路分流区跟驰模型
Research on car-following model for freeway diversion area considering lane-changing pressure gain
摘要
Abstract
To more accurately capture vehicle-following behavior in freeway diversion areas,this study proposes an enhanced car-following model by incorporating a lane-changing pressure gain factor into the full velocity difference model(FVDM).The proposed model accounts for both lane-changing pressure and lane-changing behavior.First,a linear stability analysis reveals that the stability region of the freeway diversion area diminishes as the lane-changing pressure gain factor increases.Second,using trajectory data from 92 lane-changing vehicles extracted from the NGSIM dataset,the improved car-following model is calibrated and validated.Simulation results demonstrate that the improved model more accurately reproduces vehicle speed and position.Compared with the original FVDM,the simulation error of the proposed pressure-based FVDM(P-FVDM)is reduced by 16%.Compared with the lane pressure FVDM(LP-FVDM),the proposed pressure-lane pressure FVDM(PLP-FVDM)reduces error by 12%.Finally,the improved model is used to simulate traffic oscillation in the diversion area.Results show that lane changing behavior can trigger traffic oscillations.Higher driving speeds attenuate oscillation amplitudes,while lower speeds result in a concave growth pattern of speed standard deviation along the vehicle platoon in the upstream direction.Furthermore,lane changes occurring closer to the exit ramp exacerbate oscillations,whereas shorter lane-changing duration help suppress them.关键词
交通工程/跟驰模型/交通震荡/换道压力/高速公路分流区/数值仿真Key words
transportation engineering/car-following model/traffic oscillation/lane-changing pressure/freeway diversion area/numerical simulation分类
交通工程引用本文复制引用
杨龙海,车婷婷,马文奎,章锡俏,陈霖..考虑换道压力增益的高速公路分流区跟驰模型[J].重庆大学学报,2025,48(8):40-53,14.基金项目
黑龙江省自然科学基金(LH2019E052).Supported by the Natural Science Foundation of Heilongjiang Province of China(LH2019E052). （LH2019E052）
