摘要: |
The US ACE is responsible for the design and maintenance of commercially navigated federal waterways in rivers and coastal ports. Since the 1980s, the USACE Engineer Research and Development Center (ERDC) has used ship simulation as an essential tool to study proposed modifications of federal channels. The ERDC has the unique ability to numerically model the hydrodynamics, "current fields, water levels, and waves," necessary for input for ship simulations. The ERDC has continued to evolve its methods to support safe and efficient channel design through the development of feasibility-level ship simulation (FLSS). This program was developed in response to a USACE shift to SMART (specific, measurable, attainable, risk-informed, timely) planning. The FLSS provides USACE districts and their stakeholders the ability to screen potential design alternatives, resulting in a range of designs that are both feasible and fit within the USACE benefit-cost (BC) ratio (BC ratio >1). The benefits of FLSS have been illustrated in projects such as the Port of Long Beach, Matagorda Bay, and Nome. |