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HAZARD IDENTIFICATION AND ANALYSIS METHODOLOGY <br />Hazard Assessment Matrix <br />One way to conduct hazard assessments is to use a "Hazard Assessment Matrix ". The Matrix <br />condenses "hazard assessment" into a chart and prioritizes those hazards that are evaluated. Two <br />hazard severity categories are used to designate the magnitude of the "worst case" potential <br />effects of the hazard are as follows: <br />• Category I — Critical <br />Hazard can result in severe injuries or death to passengers, employees, or others who <br />encounter the Transportation System and/or cause major property damage. <br />• Category II — Marginal <br />Hazard can result in minor injury or negligible property damage. <br />After hazards are assessed for their potential severity, they can be examined to determine the <br />probability that they may lead to an accident. As an increase in knowledge about safety is <br />established through the course of the System Safety Program, prior accident information will be <br />factored into the probability analysis if it is appropriate to do so. <br />13 <br />Frequent <br />The hazard is likely to cause an accident on a recurrent basis. <br />Remote <br />An accident is unlikely but possible during the life of the hazard. <br />HAZARD ASSESSMENT MATRIX <br />Frequency of <br />Occurrence <br />Hazard Categories <br />Critical <br />Marginal 11 <br />A Frequent <br />IA <br />II A <br />B Remote <br />I B <br />II B <br />Hazard Risk Index <br />I A <br />Unacceptable or Undesirable (Management Decision <br />Necessary) <br />II A, I B <br />Acceptable with Management Review <br />II B <br />Acceptable without Management Review <br />Hazard Analysis <br />04/25/16 PDFConvert. 10733. 1. Section 3_- _Safety Data Acquisition Analysis <br />14 <br />Attachment number 3 \n <br />F -9 Page 236 <br />