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Maintenance

Material Application Methodologies Guidebook

Roadway maintenance agencies are challenged in winter to cost-effectively provide a high level of service and improve safety and mobility, and they strive to use the most recent advances in the application of maintenance materials, equipment, and sensor technologies. The goal of this research was to create a synthesis of best management practices for deicing application rates and material application methodologies.

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Bio-Based Renewable Additives for Anti-Icing Applications (Phase II)

Recent years have seen increased reliance on the use of chemical products for snow/ice control operations on roadway pavements. Because the affordable products available on the market are plagued by concerns over environmental impacts, maintenance agencies are constantly seeking an alternative to chloride-based deicing salts, one with maximum anti-icing efficiency and minimum drawbacks. This project developed a high-performance “green” anti-icer that can minimize the harmful impacts of traditional chloride-based salts.

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Snow Removal Performance Metrics

This project sought to identify effective performance metrics for snow and ice maintenance operations. The project team gathered information from published literature and surveyed the winter road maintenance operations community. They analyzed the information with a focus on performance measures for snow/ice maintenance operations, their temporal evolution and effectiveness, costs of gathering and analyzing the performance data, and methods of communicating the level of success inside the organization and beyond.

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Assessment of Lube Oil Management and Self-Cleaning Oil Filter Feasibility in WSF Vessels

To help Washington State Ferries investigate the use of a self-cleaning oil filtration system, researchers from Washington State University tested such a system on one ferry vessel, looking specifically at filtration effectiveness, environmental impacts, and costs. Results of filtration effectiveness showed little difference between the standard paper cartridge filtration system currently in wide use and the self-cleaning system. A life cycle environmental impact assessment revealed that although impacts from oil and filter use would be less, the additional diesel fuel consumed by that system would outweigh any benefits in many impact categories. Finally, a life cycle cost analysis suggested that the standard system would outperform the self-cleaning system in terms of whole life cost (unless the oil lifetime could be increased by more than three-fold), primarily because the self-cleaning system used additional fuel. The researchers’ overall assessment was that if expected costs and environmental impacts are major decision points, a suitable alternative system would need to consume less diesel fuel to be viable.

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