Safety barriers include physical and non-physical means in different industries for preventing the occurrences of hazardous events and mitigating the consequences in case they have occurred. After clarifying the relevant terminologies, this article reviews the literature in the domain of safety barriers in the recent decade, and categorizes these studies into barrier theory, barrier engineering and barrier management. Classifications of barriers, performance measures, modeling approaches and data-driven analysis for safety barriers are reviewed as parts of barrier theories. In the engineering section, the research advances are presented in accordance with design for reliability and safety, test and maintenance strategies, responses to dependent failures, and diagnosis and prognosis of degradations. Then, project and process management, human and organizational factors, and standardization and compliance management of safety barriers are summarized. Based on the review of literature, research perspectives on safety barriers for resilience, digital safety, security of barriers, utilizing data, and dealing with intelligence, are highlighted and potential challenges are mentioned. This study is therefore expected to be beneficial to the researchers of system and safety engineering, with systematically streamlining and innovatively categorizing the recent findings and insights.

安全壁垒包括不同行业中的物理和非物理手段，用于防止危险事件的发生并减轻危险事件的后果。在弄清相关术语之后，本文回顾了近十年来安全障碍领域的文献，并将这些研究分为障碍理论，障碍工程和障碍管理。安全栅的分类，性能度量，建模方法和数据驱动的分析均作为安全栅理论的一部分进行了回顾。在工程部分中，将根据可靠性和安全性设计，测试和维护策略，对相关故障的响应以及性能下降的诊断和预后，提出研究进展。然后，进行项目和流程管理，归纳了人为因素和组织因素，以及安全屏障的标准化和合规性管理。在对文献进行回顾的基础上，强调了关于安全性，安全性，数字安全性，安全性，数据利用和情报处理的安全障碍的研究观点，并提到了潜在的挑战。因此，预期该研究将对系统和安全工程的研究人员进行系统化的精简和创新性分类，对近期的发现和见解将是有益的。突出显示并提到了潜在挑战。因此，预期该研究将对系统和安全工程的研究人员进行系统化的精简和创新性分类，对近期的发现和见解将是有益的。突出显示并提到了潜在挑战。因此，这项研究有望对系统和安全工程的研究人员进行系统化的精简和创新地分类，以期对近期的发现和见解有所帮助。