Results 61 to 70 of about 335 (178)

Enhancing Intersection Safety at Uncontrolled Three‐Legged Intersections Through Assessment of Risk

IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
This study focuses on exploring the relationship between accepted gap and risk, as well as quantifying the level‐of‐risk and severity (LORS) to design effective safety measures for reducing accident severity at uncontrolled three‐legged intersections.
Khushbu Bhatt, Jiten Shah, Margaret C. Bell, Dilum Dissanayake   +3 more
wiley   +1 more source

Trajectory Optimization for Automated Vehicles of Different Cooperation Classes Using Reinforcement Learning at a Signalized Intersection

IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
1) A trajectory optimization method based on RL was proposed. 2) The performance in C‐ADS‐equipped vehicles of different cooperation classes was investigated. 3) Allowing optimization of hyper parameters offered more robustness. 4) The intersection performance indicators were validated through simulation.
Mengzhu Zhang, Junqiang Leng, Xiaoyan Huo, Qinzhong Hou   +3 more
wiley   +1 more source

Automatic Driving Passage Strategies for Signal‐Free Pedestrian Crosswalks Using an Improved Responsibility‐Sensitive Safety Model

Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.
Signal‐free crosswalks are a high incidence area for pedestrian–autonomous vehicles (AV) conflicts, but there is no comprehensive and reasonable solution for AVs to safely and efficiently navigate through these conflict scenarios. To address this problem, this study proposes a responsibility‐sensitive safety (RSS) model specifically for pedestrian–AV ...
Chuanyun Fu, Jinzhao Liu, Guifu Li, Yaping Zhang, Zhaoyou Lu, Wei Bai, Mohammad Rezwan Habib   +6 more
wiley   +1 more source

Real‐Time Traffic Conflict Prediction at Intersections: A Novel Approach Integrating Statistical Models and Machine Learning

Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.
Real‐time traffic conflict prediction is crucial for developing proactive safety management strategies and improving overall traffic safety. However, existing studies have failed to fully consider the entire process of traffic conflict generation at both signalized and unsignalized intersections.
Chuanyun Fu, Jiaming Liu, Huahua Liu, Xiaoli Wang, Zhaoyou Lu, Jushang Ou, Wei Bai, Kun Wang   +7 more
wiley   +1 more source

Volume warrants for major and minor roads left-turning traffic lanes at unsignalized T-intersections: A case study using VISSIM modelling

Journal of Traffic and Transportation Engineering (English ed. Online), 2018
The most common type of intersection improvement considered in Ghana is signalization. However, other actions such as the installation of left-turn lanes have been proven to improve the efficiency and safety of an intersection without the need for ...
Eric Nyame-Baafi, Charles Anum Adams, Kwame Kwakwa Osei   +2 more
doaj   +1 more source

Comparative analysis of pedestrian accidents risk at unsignalized intersections

The Baltic Journal of Road and Bridge Engineering, 2015
More than one accident of three that involve pedestrians in urban area occurs at road intersections. The users’ inproper behaviour, the geometrical characteristics of the intersections, and the high speeds of vehicles are the main causes of pedestrian accidents.
Sascia Canale, Natalia Distefano, Salvatore Leonardi   +2 more
openaire   +5 more sources

Symbiotic Evolution and Simulation of Motorized and Nonmotorized Vehicles at Right‐Turns

Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.
This paper constructs a dynamic crossing model for motorized and nonmotorized vehicles at right‐turn intersections based on the Lotka–Volterra framework. The study explores equilibrium points and stability conditions within the symbiotic evolution model.
Zhixiu Liu, Yi Zeng, Yinwei Zhao, Jing Zhao   +3 more
wiley   +1 more source

Interventions for Increasing Pedestrian Visibility to Prevent Injury and Death: A Systematic Review

Health &Social Care in the Community, Volume 2025, Issue 1, 2025.
Background Pedestrian visibility is a critical factor in reducing the number of pedestrian accidents on roads. A review of pedestrian visibility literature may reveal different types of interventions that are feasible for promoting pedestrian visibility.
Roghayeh Khabiri, Leila Jahangiry, Hosna Rashidi Birgani, Homayoun Sadeghi-bazargani, Mohammad Niroumand Sarvandani   +4 more
wiley   +1 more source

An Optimal Scheduling Model for Connected Automated Vehicles at an Unsignalized Intersection

Algorithms
The application of connected automated vehicles (CAVs) provides new opportunities and challenges for optimizing and controlling urban intersections. To avoid collisions of vehicles in conflicting directions at intersections and improve the efficiency of ...
Wei Bai, Chengxin Fu, Bin Zhao, Gen Li, Zhihong Yao   +4 more
doaj   +1 more source

MPC‐Bi‐LSTM based control strategy for connected and automated vehicles platoon oriented to cyberattacks

IET Intelligent Transport Systems, Volume 18, Issue 12, Page 2586-2600, December 2024.
This paper designs a communication topology anomaly response system (CTARS) to ensure platoon safety, which consists of a trigger module based on TTC indicators to distinguish abnormal vehicle behavior and a control module based on MPC‐Bi‐LSTM to deal with cyberattacks.
Liyou Li, Hang Yang, Rongjun Cheng
wiley   +1 more source