Evaluation of the safety perceptions of roundabout users is crucial for improving road safety in mixed-traffic environments. The crash- and conflict-based analyses do not incorporate the socio-demographic characteristics of the roundabout users, which can only be captured through questionnaire surveys on a larger scale. This research evaluated the relationship of roundabout safety perception with demographic factors, driving characteristics, and varying roundabout geometries using multiple correspondence analysis, cluster analysis, factor analysis, and multinomial logistic regression. The study analyzed data from 1,530 respondents across two Indian cities. The study identified three roundabout user clusters. Single-lane roundabouts were perceived as safer during entry and circulation, with a significant prominence among middle-aged users. In contrast, double- and multi-lane roundabouts presented higher perceived risks during exit maneuvers, especially among young, inexperienced, unemployed/self-employed users. Vulnerable road users reported significantly higher perceived risks, especially under suboptimal lighting conditions. Respondents with 10-20 years of driving experience, especially car users, perceived lower risk at single-lane roundabouts but acknowledged the higher risk linked to speed variations and complex maneuvers at multi-lane roundabouts. Driving experience, vehicle type, and geometric configurations were crucial in roundabout safety perception. The study highlighted the need to improve the built environment of roundabouts for vulnerable road users. The roundabout merging area was perceived as the most dangerous spot; however, exits were also perceived as dangerous for double- and multi-lane roundabouts. The findings can benefit policymakers, engineers, and urban planners by enabling them to deploy targeted safety interventions based on issues highlighted in the study.

翻译：评估环形交叉口使用者的安全感知对于改善混合交通环境中的道路安全至关重要。基于事故与冲突的分析方法未能纳入环形交叉口使用者的社会人口特征，这些特征只能通过大规模问卷调查获取。本研究采用多重对应分析、聚类分析、因子分析及多项逻辑回归方法，系统评估了环形交叉口安全感知与人口统计因素、驾驶特征及不同环形交叉口几何形态之间的关联。研究分析了来自印度两座城市共1,530名受访者的数据，识别出三类环形交叉口使用者群体。单车道环形交叉口在驶入与通行阶段被感知为更安全，这一特征在中年使用者群体中尤为显著。相比之下，双车道及多车道环形交叉口在驶出操作阶段呈现出更高的感知风险，尤其在年轻、经验不足、无业/自雇使用者群体中更为突出。弱势道路使用者报告了显著更高的感知风险，在照明条件欠佳时尤为明显。具有10-20年驾驶经验的受访者（特别是汽车使用者）认为单车道环形交叉口风险较低，但同时承认多车道环形交叉口因速度变化和复杂操作带来的更高风险。驾驶经验、车辆类型与几何构型是影响环形交叉口安全感知的关键因素。本研究强调需针对弱势道路使用者改善环形交叉口的建成环境。环形交叉口汇流区被感知为最危险区域，而双车道及多车道环形交叉口的出口区域同样被视为高风险区域。研究结果可为政策制定者、工程师和城市规划者提供依据，使其能够基于本研究所揭示的问题实施有针对性的安全干预措施。