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- Title
Influencing Factors of the Length of Lane-Changing Buffer Zone for Autonomous Driving Dedicated Lanes.
- Authors
Hou, Fujin; Zhang, Ying; Wang, Shujian; Shen, Zhengxi; Mao, Peipei; Qu, Xu
- Abstract
Featured Application: The study investigates the factors influencing the longitudinal driving distance during the lane-changing process to provide a theoretical basis for the set buffer zone length of future autonomous driving dedicated lanes. With the development of intelligent transportation, dedicated highway lanes for autonomous vehicles (AVs), necessary for ensuring their right of way, have emerged as critical issues in intelligent transportation research, which makes it necessary to set up specialized lane-changing buffer zones in the lane adjacent to the dedicated one. Restricted by the current situation of intelligent transportation systems, based on NGSIM data, this study filters out typical lane-changing description data featuring lane-changing behaviors and constructs a principal component analysis (PCA) model containing factors affecting the longitudinal driving distance during the whole lane-changing procedure. The validity of the model is evaluated with a significance test. Comparing the PCA model to a general linear regression model, suggestions on setting the length of lane-changing buffer zones are put forward. The length of the buffer zone mainly considers speed, acceleration, and the flow in the dedicated lane. In general, a shorter buffer zone length can be achieved by increasing the design speed of the buffer zone, raising the headway of AVs in the dedicated lane, reducing the acceleration rate of lane-changing vehicles, and reducing the time proportion of the lane change preparation stage, which occurs earlier in the procedure.
- Subjects
LANE changing; AUTONOMOUS vehicles; INTELLIGENT transportation systems; PRINCIPAL components analysis; RIGHT of way; STATISTICAL hypothesis testing
- Publication
Applied Sciences (2076-3417), 2022, Vol 12, Issue 10, p4923
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app12104923