TRB - VibeWire Magazine

Development of a Prototype Smart Hy-Rail Wheel

Guest authors
August 28, 2024
0

The Federal Railway Administration track safety standards require rigorous visual inspections of tracks based on their operating speed. These inspections can be as frequent as twice per week. They are carried out using hy-rail (highway/rail) vehicles, …

Adjustment to Asphalt Mixtures to Meet Performance Testing Requirements and Allow Innovations

Guest authors
August 27, 2024
0

Asphalt mixture mechanical tests (such as Hamburg Wheel-Track, Asphalt Pavement Analyzer, Indirect Tensile Cracking) are growing in use by numerous state departments of transportation (DOTs) as part of their standard material specifications to compleme…

Day-to-Day Practices to Reduce the Carbon Footprint of Asphalt

Guest authors
August 15, 2024
0

Asphalt pavement stakeholders are working toward a common goal of net-zero emissions by 2050 and incorporating the use of technologies and tools to rationally quantify the environmental impacts of asphalt pavement materials and construction alternative…

The Magnetic Rail Movement Measuring Device for Rail Safety

Guest authors
August 10, 2024
0

Over the years, major railways and transit agencies have heavily invested in programs to enhance the early detection of track movement and high rail temperatures. Extreme rail temperatures, lateral push, and vertical pumping pose significant risks to r…

Impacts on Practice: Developing and Leasing Airport Property

Guest authors
July 30, 2024
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Airport administrators and sponsors frequently offer ground leases for properties such as hangars and aircraft maintenance facilities to external aeronautical partners as opportunities for additional revenue and economic expansion. The TRB Airport Coop…

TR News 350

Guest authors
July 23, 2024
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The July–September 2024 issue of TR News (Issue 350) features a look at the challenges presented by oil spills and the advances in oil spill science; guidance in evaluating the historic significance of post–World War II commercial properties; and the u…

An Artificial Intelligence Aided Forward-Facing Camera Video Data Analytics System for Rail Safety

Guest authors
July 19, 2024
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Trespassing along railroad rights-of-way continues to be the leading cause of rail-related fatalities in the U.S., demanding innovative solutions to gain deeper insight into trespassing behaviors. The TRB IDEA (Innovations Deserving Exploratory Analysi…

GHG Emissions and Climate Change in Environmental Reviews

Guest authors
July 18, 2024
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Many state departments of transportation are seeking ways to improve the way they address greenhouse gas (GHG) emissions and climate change effects in environmental reviews. NCHRP WebResource 3: GHG Emissions and Climate Change in Environmental Reviews…

Establishing NDE Protocols for Use in Early Age Bridge Deck Preservation Strategies

Guest authors
July 12, 2024
0

A bridge deck serves as the protective layer of the structure. However, the ingress of moisture and early age cracking in a steel-reinforced concrete bridge deck are often overlooked in their relationship to the overall trajectory of its deterioration….

Development of a Compaction Quality Control Standard for the Small Diameter Pressuremeter

Guest authors
July 12, 2024
0

Quality control during soil compaction is critical to the proper construction of our roadways and structures. There has always been a void between laboratory moisture-density compaction and the soil’s strength and stiffness. The TRB IDEA (Innovations D…