Doğan Erdem
Department of Civil Engineering, Kırıkkale University, 71450 Yahşihan, Kırıkkale, Turkiye.
J Safety Res. 2025 Sep;94:70-80. doi: 10.1016/j.jsr.2025.06.005. Epub 2025 Jun 16.
Roundabouts are increasingly being used to improve traffic flow and reduce conflict points compared to traditional intersections. While previous studies have generally shown that roundabouts reduce vehicle collisions and improve traffic conditions, their impact on pedestrian safety, particularly in urban areas with high pedestrian traffic, has not been adequately studied. Despite the potential of roundabouts to reduce the overall severity of collisions, recent studies also point to specific safety challenges for pedestrians, including the difficulties faced by slow-moving people, changes in pedestrian behavior when avoiding roundabouts, and problems with disabled pedestrians are faced with. This systematic review fills this gap by evaluating existing research on pedestrian safety at roundabouts and distinguishing it from other review studies. Additionally, this review focuses on examining roundabouts and their impacts on pedestrian safety, synthesizing the literature, and identifying key findings.
Four research questions were developed, covering pedestrian behavior, personal traits, traffic volume and speed, geometric and design elements, and pedestrian safety assessment techniques. The research questions and the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) method were used to choose and thoroughly examine 51 studies. In addition, it is intended to support the correct selection of measures to improve pedestrian safety at roundabouts and provide researchers with a reference for safety modeling.
Roundabouts with higher pedestrian safety standards can be planned with the help of this systematic review, which also helps to clarify the factors influencing pedestrian safety at roundabouts. When creating safe and sustainable transportation infrastructure, decision-makers and urban planners can use these findings as a guide.
与传统十字路口相比，环形交叉路口越来越多地被用于改善交通流量和减少冲突点。虽然先前的研究普遍表明环形交叉路口可减少车辆碰撞并改善交通状况，但它们对行人安全的影响，尤其是在行人流量大的城市地区，尚未得到充分研究。尽管环形交叉路口有可能降低碰撞的总体严重程度，但最近的研究也指出了行人面临的具体安全挑战，包括行动缓慢者所面临的困难、行人在避开环形交叉路口时行为的变化，以及残疾行人所面临的问题。本系统综述通过评估现有关于环形交叉路口行人安全的研究并将其与其他综述研究区分开来，填补了这一空白。此外，本综述侧重于研究环形交叉路口及其对行人安全的影响，综合文献并确定关键发现。
提出了四个研究问题，涵盖行人行为、个人特征、交通流量和速度、几何和设计元素以及行人安全评估技术。研究问题和PRISMA（系统评价和Meta分析的首选报告项目）方法用于选择并全面审查51项研究。此外，旨在支持正确选择改善环形交叉路口行人安全的措施，并为安全建模的研究人员提供参考。
借助本系统综述可以规划出具有更高行人安全标准的环形交叉路口，这也有助于阐明影响环形交叉路口行人安全的因素。在创建安全且可持续的交通基础设施时，决策者和城市规划者可以将这些发现用作指导。
