Transit Safety Risk Assessment Methodologies (2021) / Chapter Skim
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29 Case Examples This chapter contains five case examples of North American transit agencies including one international transit agency from Canada. The examples include one agency that operates bus-only service.
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30 Transit Safety Risk Assessment Methodologies mainly refers to the Hazard Analysis Guidelines for Transit Projects (Adduci et al., 2000) and the section of the Rail Transit Safety Branch Procedure for Hazard Management in the California Public Utilities Commission (2021)
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Case Examples 31 deficiencies, or a combination. For hazard probability, there are five categories instead of six, which are defined as frequent, probable, occasional, remote, and improbable as shown in Figure 23.
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32 Transit Safety Risk Assessment Methodologies Hazards are tracked in the Hazard Management spreadsheet. The mitigations are discussed in monthly Safety Committee meetings and documented in meeting minutes, which are posted on bulletin boards and on the agency intranet.
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Case Examples 33 • When investigating a safety event, accident, or incident • On hazards and other safety concerns that are identified through inspections and internal audits • On hazards and other safety concerns reported by employees and/or riders When it comes to capital projects and safety-critical projects, safety is integrated into design, specification preparation, equipment selection, construction, procedures, and operations. SDMTS project implementation staff apply methods of hazard identification, assessment, and resolution to minimize or eliminate accidents and injuries.
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34 Transit Safety Risk Assessment Methodologies Sacramento Regional Transit District Background The Sacramento Regional Transit District (SacRT) is the public transit service owned and operated by the city of Sacramento, California.
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Case Examples 35 Military Standard 882 Benefits of the MIL-STD-882 mentioned by SacRT included the following: • Institutional knowledge of the methodology means that people are familiar with and understand the methodology. • It is a good way to communicate results since the MIL-STD-882 is a consistent comparison platform.
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36 Transit Safety Risk Assessment Methodologies Challenges of the European CSM mentioned by SacRT included the following: • Unlike the MIL-STD-882, people outside of the safety department are largely unfamiliar with the methodology. • Examples demonstrating when and how to use the European CSM are not provided by FTA or FRA.
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Case Examples 37 Root Cause Analysis When SacRT starts a process, it typically uses mapping to do a high-level root cause analysis. An example was provided about a recent increase in pedestrian trespassers near light rail vehicles.
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38 Transit Safety Risk Assessment Methodologies Resources SacRT provides its training in-house. Staff indicated that training on theoretical problems, or from other industries, is often nebulous or hard to grasp.
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Case Examples 39 Canadian Common Method The Canadian common method is largely based on the European common method, with minor deviations to better meet the requirements established by Canadian regulatory agencies. Figure 27 is taken from an ETS document that visually represents the common method used by the agency for risk assessment.
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40 Transit Safety Risk Assessment Methodologies Source: Edmonton Transit Service (2020)
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Case Examples 41 Source: Metro North Partners (2019)
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42 Transit Safety Risk Assessment Methodologies Source: Metro North Partners (2020)
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Case Examples 43 Implementation Cost ETS was not able to provide any costs associated with its SRA process. This task would likely involve individuals from several transit agency departments.
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44 Transit Safety Risk Assessment Methodologies opportunity. The formation of cross-functional teams and committees and their involvement in processes in which they normally would not be involved can work to enrich their perspectives, resulting in a deeper understanding of the importance of the organization operating safely and how they, as individuals, fit into helping to grow the agency's safety culture.
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Case Examples 45 pride in a job well done. However, there is perceived value in bringing in a consultant to do the technical assessment for higher-level risks.
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46 Transit Safety Risk Assessment Methodologies Safety Risk Assessment Methodologies As the Bakersfield area is transitioning from a small city to a medium-size city, so is GET. Safety was not at the crux or forefront within the agency in the past as it relates to techniques, projects, and procedures.
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Case Examples 47 and/or riders. For instance, GET conducted the SRA when adding an additional bay for its hydrogen fueling stations.
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48 Transit Safety Risk Assessment Methodologies regime from reactive to less formal and more proactive. The safety committee has representation from every department, and drivers are invited as well.
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