Safety Evaluation of Urban Rail Transit Signal System Based on HAZOP and ALARP Principles

MO Zhigang; LUO Hanbin

doi:10.13890/j.issn.1000-128x.2018.03.017

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Safety Evaluation of Urban Rail Transit Signal System Based on HAZOP and ALARP Principles

更新时间：2021-12-13

- Safety Evaluation of Urban Rail Transit Signal System Based on HAZOP and ALARP Principles
- Electric Drive for Locomotives Issue 3, Pages: 85-89(2018)
- 作者机构：
  
  1. 华中科技大学土木工程与力学学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2018.03.017
  CLC：
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MO Zhigang, LUO Hanbin. Safety Evaluation of Urban Rail Transit Signal System Based on HAZOP and ALARP Principles. [J]. Electric Drive for Locomotives (3):85-89(2018)
DOI：

MO Zhigang, LUO Hanbin. Safety Evaluation of Urban Rail Transit Signal System Based on HAZOP and ALARP Principles. [J]. Electric Drive for Locomotives (3):85-89(2018) DOI： 10.13890/j.issn.1000-128x.2018.03.017.

摘要

分析地铁信号系统运营阶段的安全需求，提出在设计阶段基于HAZOP 及ALARP 的方法评估与控制信号系统影响行车安全的潜在风险。运用HAZOP 方法开展系统的风险定性分析，层层分解可能导致事故发生的系统级危险源，结合ALARP 风险矩阵，采用经验打分法对风险进行定量分析，确定风险等级。并以信号系统 ATC 车载子系统为例，详细阐述了基于HAZOP 及ALARP 方法的信号系统风险评估的全过程，并给出风险控制的相关措施。

Abstract

Safety requirements of subway signaling system in operating stage were analysed, the potential risks of evaluating and controlling the signal system based on HAZOP (Hazard and Operability Analysis) and ALARP (as Low as Reasonably Practicable) affecting vehicle safety were proposed at the design stage. HAZOP was used to analyze the system risk qualitatively and locate the risk origin which could lead to a fatal failure, while ALARP risk matrix and experience grading were studied to ensure the risk level involved quantitatively. The ATC (on board) sub-system, as a typical example of signaling, the whole process of signaling system risk assessment based on HAZOP and ALARP was expounded in detail,and the relevant measures of risk control were given.

关键词

信号系统危险与可操作性研究（HAZOP）最低合理可行原则（ALARP）风险矩阵安全评估

Keywords

signaling systemHAZOPALARPrisk matrixsafety evaluation

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