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Keywords = right-turn ramps on the left

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20 pages, 6340 KB  
Article
Calculation Model for the Exit Decision Sight Distance of Right-Turn Ramps on the Left at Interchange
by Zhipeng Fu, Jiale Zhang, Binghong Pan, Shangen Wu and Hang Yang
Appl. Sci. 2024, 14(14), 6205; https://doi.org/10.3390/app14146205 - 17 Jul 2024
Cited by 1 | Viewed by 1736
Abstract
Given the rapid construction of freeways in developing countries such as China, land use is constantly under strict constraints, leading to challenges in adopting conventional layouts for interchanges. Implementing right-turn ramps on the left (RTRL) at interchanges can minimize land occupancy; however, the [...] Read more.
Given the rapid construction of freeways in developing countries such as China, land use is constantly under strict constraints, leading to challenges in adopting conventional layouts for interchanges. Implementing right-turn ramps on the left (RTRL) at interchanges can minimize land occupancy; however, the traffic safety level in this type of diversion area design requires extra attention. This study examines the decision sight distance for right-turn exit ramps on the left side. Utilizing unmanned aerial vehicle (UAV) video and the YOLOv3 target detection algorithm, the original trajectory data of vehicles in the diversion area is extracted. Employing Kalman filtering and Frenet coordinate system conversion reveals microscopic vehicle lane-change patterns, velocities, and time headways. Furthermore, the driving simulation experiment assesses driver behaviors in RTRL, with subjective, task performance, and physiological measure indicators. Ultimately, the range of the decision sight distance is defined, and establishing a calculation model involves determining relevant parameters based on measured data and simulation outcomes. The results indicate potential insufficiencies in the decision sight distance when standardized values are applied to RTRL. Full article
(This article belongs to the Section Transportation and Future Mobility)
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