Strategic Issues Facing Transportation, Volume 7: Preservation, Maintenance, and Renewal of Highway Infrastructure (2020) / Chapter Skim
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Pages 26-38
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26 This chapter identifies and characterizes emerging practices that are considered applicable for use in PMR of highway infrastructure; some of which may be regarded as innovative applica tions. With continual improvement over the next 30 to 50 years, these practices could become operational practices in the daytoday business of transportation agencies.
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Emerging PMR Practice Identification and Characterization 27 European Perspective A perspective on the future (2040) from the European Commission was developed under the New Road Construction Concepts project (FEHRL, 2008)
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28 Strategic Issues Facing Transportation Table 3. Future PMR practice needs.
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Emerging PMR Practice Identification and Characterization 29 Table 4. Emerging PMR practice classification.
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30 Strategic Issues Facing Transportation Functional Purpose Emerging PMR Practice Description and Examples Practice Type Sustainability: Energy, Environmental Safety, and Natural Resource Conservation (continued) Advanced roadway and roadside noise mitigation systems, such as sound absorptive high strength concrete; solar power generating noise attenuators; weather resistant, visually appealing, vinylbased transparent noise barrier screens; and noise reducing natural landscaping Approaches Urban "green" highways with landscaped deck ceilings Approaches Sustainable roadside landscapes with greater emphasis on native habitat that supports natural heritage, biodiversity, native vegetation, low-maintenance, xeriscaping, on-site composting, and natural fertilizers Approaches Road-based energy-harvesting technologies, such as piezoelectric generators, dynamic speed bumps, and solar energy convertors Technologies Renewable energy-based or energy responsive construction equipment, such as green paving trains using non-carbon, renewable fuels and battery-operated electrical vehicles Technologies Applications of geothermal energy, such as for deicing bridge decks Technologies Traffic Operations, Safety, and System Reliability Design, safety and maintenance standards for ancillary assets in automated vehicle pathways (e.g., specialty signs and markings)
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Emerging PMR Practice Identification and Characterization 31 Functional Purpose Emerging PMR Practice Description and Examples Practice Type Asset Longevity and Life-Cycle Management (continued) Machine learning applications in developing more reliable, robust and data-driven decision support systems Tools Application of mechanistic perpetual/long-life concepts for roadway infrastructure in materials, design, construction practices, and management Approaches Predictive-proactive maintenance regime for roadway assets, e.g., reliability centered maintenance Approaches Applications of "Preservation First" approach integrated into asset life-cycle management Approaches Pre-stressed concrete slab technology for increased durability and better crack control Technologies Procurement and Methods Enterprise information systems for business process integration Tools Customer experience management (CXM)
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32 Strategic Issues Facing Transportation Most Promising Emerging PMR Practices Screening Criteria The research team applied the following criteria to identify promising PMR practices for further consideration. • Responsive to Scenario Elements: Is the practice responsive to more than one of the scenario elements identified in Table 2?
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Emerging PMR Practice Identification and Characterization 33 Table 6. Evaluation criteria for candidate emerging PMR practices.
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34 Strategic Issues Facing Transportation Table 7. Promising emerging PMR practices.
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Emerging PMR Practice Identification and Characterization 35 Outreach Process The research team held outreach sessions with transportation stakeholders to identify the most promising PMR practices and to seek input on how to organize guidance that will help agencies deal with these practices. The participants included (1)
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36 Strategic Issues Facing Transportation 3) Benefits a)
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Emerging PMR Practice Identification and Characterization 37 Suggested Emerging PMR Practices The 16 highestranked (most promising) emerging PMR practices were: • HyperPerformance Materials • Connected V2I Technology Providing Communications between Passing Vehicles and Roadside Units • Perpetual/LongLife Highway Infrastructure • Integrated Building Information Modeling (iBIM)
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38 Strategic Issues Facing Transportation • IoT -- PMR Applications • Artificial Intelligence -- PMR Traffic Management Applications The lowestranked 8 PMR practices (i.e., 17 to 24) were: • CXM Analytics • Green Chemistry -- PMR Applications • EPDs • Game/Simulation Workforce Training • 3D Printing of Infrastructure Components • NonDestructive Testing for Ancillary Assets • Dedicated Corridors for Automated Vehicles • Outsourcing and Privatization of PMR The 16 highestranked practices were used in preparing detailed guidance as part of the project.
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