AASHTO LRFD

AASHTO LRFD, which stands for American Association of State Highway and Transportation Officials Load and Resistance Factor Design, is a modern engineering method used to ensure bridges and roads are safe and durable. It combines detailed analysis of loads (like vehicles and weather) with precise safety factors that account for uncertainties in materials and construction. This approach allows engineers to design infrastructure that can withstand future stresses with confidence, optimizing safety without excessive costs. In essence, AASHTO LRFD provides a standardized, reliable framework for designing transportation structures that are safe, efficient, and long-lasting.