Results 81 to 90 of about 292,949 (215)

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

open access: yesJournal 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   +6 more
wiley   +1 more source

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

open access: yesJournal 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   +7 more
wiley   +1 more source

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

open access: yesJournal 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   +3 more
wiley   +1 more source

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

open access: yesHealth &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   +4 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

open access: yesJournal 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   +2 more
doaj   +1 more source

Comparative analysis of pedestrian accidents risk at unsignalized intersections

open access: yesThe 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   +2 more
openaire   +5 more sources

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

open access: yesIET 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

Intersection decision making for autonomous vehicles based on improved PPO algorithm

open access: yesIET Intelligent Transport Systems, Volume 18, Issue S1, Page 2921-2938, December 2024.
In this article, we improve the proximal policy optimisation (PPO) algorithm in deep reinforcement learning and propose an MSA‐PPO algorithm, which adopts the self‐attention mechanism for input data processing, effectively identifies and focuses on the most important information in the interaction between vehicles to improve the overall performance of ...
Dong Guo, Shoulin He, Shouwen Ji
wiley   +1 more source

ANALYSIS OF OPTIMIZE TRAFFIC IN ALSAHARA UNSIGNALIZED INTERSECTION LIBYA [PDF]

open access: yes, 2013
The background and objective study is Introduction of this study Contains the background of the research topic ,the location intersection in this study are located in SABHA city Libya considering ALSAHARA intersection is one of the important ...

core   +1 more source

Phase diagrams of traffic flow at an unsignalized intersection

open access: yes, 2012
This paper studies phase diagrams of traffic flow at an unsignalized intersection consisting of two perpendicular one-lane roads, employing parallel update rules and yield dynamics.
Rui Jiang   +3 more
core   +1 more source

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