New tools and process workflows incorporating geophysical site investigation are available to make data-driven evaluations of bridge scour and erosion for risk assessment and resilient design. This webinar will describe the use of geophysical techniques for subsurface exploration and subsequent data analysis along with application for subaquatic characterization of historical and existing scour conditions. These techniques create holistic earth models for geotechnical analysis and risk and resilience assessment.
Attention to details in the volumetric acceptance process is important to ensure an asphalt mixture with adequate asphalt content. These details apply to the mixture design and acceptance. This webinar will share key properties that need to be included in the design and acceptance of asphalt mixtures.
Buried bridges, a relatively new and inexpensive form of highway bridge, have demonstrated good long-term performance. The efficiency and affordability make buried bridges a good alternative to traditional beam bridges. This webinar will explore successful case studies showcasing the exceptional performance of concrete and steel buried bridges, supported by multi-year measurements.
Motorized traffic is a significant source of urban air pollution. Individuals living adjacent to freeways and arterials have increased exposure to traffic-related air pollution. It contributes to increased risks of cancer, respiratory and cardiovascular disease, and adverse birth outcomes. This webinar will share the relationship between transportation, air pollution, and health effects and provide strategies to work with communities to develop mitigation strategies.
The new American Association of State Highway and Transportation Officials (AASHTO) Guide for Accommodating Utilities within Highway Right-of-Way will combine the utility accommodation policy and the utility accommodation guide. This webinar will provide background on the laws and regulations that led to the development of the original documents and a summary of the recent NCHRP project that led to the development of the new guide.
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