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Wherefore Art Thou Aggregate Resources for Highways
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2011
Year
EngineeringSustainable Material DevelopmentSustainable DesignGeotechnical EngineeringTraffic ManagementLogisticsTransport InfrastructureSustainable GeotechnicsTransportation EngineeringPublic PolicyMineral AggregatesReliable SupplyCivil Engineering MaterialsEnvironmental EngineeringCivil EngineeringBusinessRecyclingSustainabilitySustainable MaterialQuality Aggregates
A reliable supply of quality aggregates is needed to build and maintain durable pavements and transportation structures. In January 2011, at the Transportation Research Board's (TRB) 90th Annual Meeting, experts from the United States and Europe gathered for a workshop on Aggregate Source Depletion and Future Supply. Representatives from the Federal Highway Administration (FHWA), the U.S. Geological Survey, State departments of transportation, industry, and academia discussed the future of sustainable sources of mineral aggregates and related issues facing transportation agencies. This article summarizes highlights from their presentations. The workshop sessions addressed aggregate needs for highways and structures; recycled materials; sustainability efforts at the state level; Alaska’s materials inventory management program; public policy and permitting issues related to supply and transportation of aggregates; FHWA research efforts; and European experience and perspectives. The TRB workshop presentations and ongoing discussions among industry experts underscore the need for attention to ensuring sustainable sources of mineral aggregates and recycled aggregate materials for the future.