Uses of Risk Management and Data Management to Support Target-Setting for Performance-Based Resource Allocation by Transportation Agencies (2011) / Chapter Skim
Currently Skimming:
Pages 1-18
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 1... ...
P A R T 1 Applications of Risk Management to Support Performance-Based Resource Allocation
|
From page 2... ...
Performance-based resource allocation decisions are anchored in a set of policy goals and objectives that identify an organization's desired direction and reflect the environment within which its business is conducted. For example, many state DOTs have well-defined goals for the transportation system, including infrastructure condition, level of service and safety, as well as goals reflecting C H A P T E R 1 Introduction
|
From page 3... ...
The 1-1-2 Goals/Objectives Performance Measures Target Setting Evaluate Programs and Projects Allocate Resources Budget and Staff Measure and Report Results Actual Performance Achieved Quality Data Figure 1.1.1. Performance management framework.
|
From page 4... ...
The second area focuses on the institutional issues associated with data stewardship and data governance. 1.2 Selected Case Studies Georgia DOT Pavement and Bridge Preservation Risk Assessment The Georgia Department of Transportation (GDOT)
|
From page 5... ...
California DOT Seismic Safety Retrofit Program There are more than 12,000 bridges in the California State Highway System, plus an additional 11,500 city and county bridges. The California Department of Transportation (Caltrans)
|
From page 6... ...
As described in NCHRP Report 525: Surface Transportation Security, "Volume 15, Costing Asset Protection: An All Hazards Guide for Transportation Agencies (CAPTA) ," this step is best suited to the strategic, high-level planning undertaken at the executive level.
|
From page 7... ...
The agency has identified the following threats and hazards: • Risk of service loss, such as bridge posting or closing, due to advanced deterioration of portions of structures, • Risk of structure damage or destruction due to stream erosion or storms, • Risk of damage or collapse of structures that are vulnerable to sudden fatigue cracking or other localized failure, • Risk of sudden damage to a bridge caused by passage of a heavy vehicle that exceeds the safe load capacity of the structure, 1-2-2 Source: Adapted from NCHRP Report 632: An Asset Management Framework for the Interstate Highway System. Establish Risk Tolerances Identify Threats/Hazards Assess Impacts or Consequences Identify Potential Mitigation Strategies/Countermeasures Measure and Monitor Effectiveness Prioritize Strategies and Develop Mitigation/Management Plan Fe ed ba ck L oo p Figure 1.2.1.
|
From page 8... ...
As shown in Table 1.2.2, the Texas SFR Plan evaluated potential external threats resulting from 10 different 1-2-3 Source: Adapted from NCHRP Report 632: An Asset-Management Framework for the Interstate Highway System and ICF International, Executive Strategies for Risk Management by State Departments of Transportation, May 2011. Level 1 Level 2 Level 3 Organizational management Agency goals and priorities Available revenues Internal Risks Project and service delivery Design development Schedule adjustments Cost of materials Program budgets Political Leadership change Laws and regulations Environmental Weather events Structural Advanced deterioration Fatigue cracking External Risks Social Terrorist attack Asset usage (e.g., traffic volumes, fleet composition, and driver error)
|
From page 9... ...
Generally speaking, as the function of a road increases 1-2-4 Note: The overall combined risk represents the overall vulnerability of the freight transportation system to each of the hazards identified in Texas. Source: TranSystems derived from Texas Hazard Mitigation Package and USGS.
|
From page 10... ...
Sample risk prioritization matrix. AADT Truck % County Population Functional Class Base Unit > 10 0K 50 -9 9K 35 -5 0K 25 -3 5K 15 -2 5K 715 K < 7 K > 1 2% < 1 2% > 6 00 K 30 060 0K 20 030 0K 10 020 0K 50 -1 00 K < 5 0 K Total Risk Factor Adjusted PACES Interstates Urban 1.00 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0.50 0.30 0.50 0.40 0.40 0.30 0.20 0.10 Rural 1.00 0.40 0.30 0.20 0.10 0.00 0.00 0.00 0.50 0.30 0.30 0.20 0.15 0.10 0.00 0.00 Freeways Urban freeways and expressways 1.00 0.30 0.20 0.10 0.00 0.00 0.00 0.00 0.30 0.10 0.40 0.35 0.30 0.20 0.10 0.05 Arterials Urban principal arterials 1.00 0.30 0.20 0.10 0.00 0.00 0.00 0.00 0.30 0.20 0.40 0.35 0.30 0.20 0.20 0.10 Urban minor arterials 1.00 0.20 0.10 0.00 0.00 0.00 0.00 0.00 0.30 0.10 0.30 02.0 0.20 0.10 0.10 0.00 Rural principal arterials 1.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.10 0.20 0.10 0.10 0.00 0.00 0.00 Rural minor arterials 1.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.10 0.10 0.00 0.00 0.00 0.00 0.00 Collectors Urban collector 1.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.10 0.30 0.25 0.20 0.10 0.10 0.00 Rural major collector 1.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.10 0.20 0.15 0.10 0.00 0.00 0.00 Rural minor collector 1.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.10 0.10 0.05 0.00 0.00 0.00 0.00 Local Urban local road 1.00 Rural local road Source: Georgia DOT 1.00 Table 1.2.3.
|
From page 11... ...
Network-level resilience is thus a function of facility-level resilience and facility weight summed across the network. After assessing the hazards in the state by county (developed in the previous step of the risk management framework)
|
From page 12... ...
. 2.4 Identify Potential Mitigation Strategies/Countermeasures Once the impacts of the risks are understood, transportation agencies can begin to develop strategies to mitigate the impact of these risks.
|
From page 13... ...
2.5 Prioritize Strategies and Develop Mitigation/Management Plan Agencies can establish risk mitigation priorities by comparing the results of the consequence analysis to the estimated costs of the mitigation strategies and countermeasures identified in the previous step. Overall, prioritizing strategies helps to inform resource allocation decisions by identifying programs and projects with the greatest return on investment.
|
From page 14... ...
Four highway corridors, I-45, I-35, I-20, and I-30, fall in the high-exposure category, while a majority of the corridors fall in the medium-exposure category. Using this risk versus exposure plot, the Texas SFR Plan concludes that I-35 and I-30 should receive the highest priority for corridor improvements, because they have the highest risk and exposure combination of all Texas highway corridors.
|
From page 15... ...
While many of the DOT case studies highlighted in this primer are newly developing or refining their risk management programs to support resource allocation, Caltrans is nearing completion of its retrofit program. As described in earlier steps of the framework, Caltrans refined their bridge prioritization algorithm over time such that it evolved into a highly complex system -- a clear example of the iterative nature of the risk management process.
|
From page 16... ...
through tradeoff analysis. The second is to develop data governance standards for its condition and performance data.
|
From page 17... ...
; • Agencies have, or desire to, fit risk assessment and management within existing performance-based planning and programming processes, with the culmination of the process being a factor or adjustment to existing prioritization scores and therefore influencing the programming process; 1-3-2 Figure 1.3.1. Texas SFR plan stages.
|
From page 18... ...
; and • Although the risk management approaches reviewed for this study all align generally with the generic risk management process described in this primer, the details vary significantly based on the individual needs of the implementing agency.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.