System safety support requirements

Step 10 Establish system safety support requirements... 

System safety support tasks are those tasks, normally performed by the safety staff, required to support and maintain system safety efforts, including verification and tracking, training, contracting support, and data collection and... 

Chemical inventory and tracking systems provide current information on the site s hazardous chemical and material inventories. A properly integrated inventory and tracking system can support other environment, safety, and health requirements (directives). This is a continuous process performed from acquisition, through storage and use, to final disposal. 

Addressing the safety culture of an organization requires utilization of a state-of-the-art process to address safety and an aligmnent of existing systems to support the mission and values of the organization [p. 49],... 

Recent aircraft design has focused on the development of unmanned aerial vehicles (UAVs). This class of aircraft has been successfully adapted to perform many of the same roles as manned aircraft but at lower cost. The absence of a pilot eliminates many of the safety and life support requirements and also changes the control objectives. For example, rapid acceleration or a bumpy trajectory can hinder a pilot s ability to cOTitrol the aircraft but do not affect the control system of a UAV. Another advantage of UAVs is that they can be used in environments that are xmdesirable for humans. This may include a combat zone or a toxic chemical plume. Moreover, many mission profiles do not require a large payload, and UAVs can be built much smaller to perform these missions because they do not have to support the extra weight of a pilot. Advancements in miniaturization have simultaneously made it possible to build smaller and smaller aircraft. 

The enterprise shall establish the models, simulations, or prototypes needed to support requirements definition, analyze the system architecture and design, mitigate identified risks, and thereby ensure that the final product satisfies market needs, requirements, and constraints. This effort supports the assessment of system functional and performance characteristics, producibility, supportability, environmental impact, and human systems engineering issues such as maintainability, usability, operability, and safety. 

The enterprise shall update the specifications for the p oimel required to operate, maintain, and support the system throughout its life eyele. Analysis shall determine if p oimel with the appropriate knowledge, skills, and abilities are predieted to be available throughout the life cycle the eognitive, physical, and sensory characteristics of the available p oimel the safety features required of the system and the level of training required for such personnel. 

In order to produce believable RACs or any other quantitative risk assessment, reliable, valid data are required. Even though considerable data exist, they are not necessarily available or in the correct format. Improvements can be made in the sharing of lessons learned, mishap information, reliability data, and the other information needed to support the system safety effort. A well-organized effort to identify and catalog existing databases and to develop plans for the systematic collection and dissemination of new data would benefit the entire safety community. 

Planning tasks are the responsibility of line management and are normally performed by a system safety planning group, supported by the safety staff, and reviewed and approved by corporate and project management. These tasks generally involve developing requirements, policy, and criteria and are discussed in detail in Chapter 9. 

System Safety Data. Specify the types of data that are required to support the effort, including sources of the data and information needed to acquire or access the data. Outline specific data generation and reporting requirements. 

What are some of the types of data required to support a system safety effort What are some of the desired characteristics of the data retreival system ... 

Who provides the procurement community with support in the contracting effort required for system safety What is the nature of this support ... 

The sensing of one or more variables indicative of a specific postulated initiating event, the signal processing, the initiation and completion of the safety actions required to prevent the limits specified in the design basis from being exceeded, and the initiation and completion of certain services from the safety system support features. 

In order to utilize the ETBA in the performance of the system safety analyses listed above, certain essential data are required for evaluation. For example, if the ETBA is to be performed on a specific manufacturing facility, then the analysis should begin with an examination of completed facility drawings. If the ETBA is concerned with a specific project, or a newly designed piece of manufacturing equipment, the project plans and schematics must be evaluated. It should be noted that the level of detail required is dependent on the analysis itself. Development of a preliminary hazard list will not require extensive detail and evaluation, whereas an ETBA in support of a subsystem hazard analysis will meticulously analyze the project to the component level and detailed drawings will, therefore, be required. 

Therefore, Part I of this text focused primarily on the development of system safety, its military connections, the importance of including system safety requirements in contract acquisitions, the criticality of obtaining management commitment in support of the system safety effort, the process of risk analysis and assessment, probability theory and statistical analysis as they relate to system safety, and— perhaps of most value— how the fundamental principles of system safety are closely related to those of occupational safety and health management. 

The legislative requirements for the safe use of pressure vessels and plant are contained in the Pressure Systems Safety Regulations 2000 with a supporting Approved Code of Practice Safety of pressure systems. Pressure Systems Safety Regulations 2000. Approved Code of Practice . HSC publication no LI 22. 

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