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Synthesis of Information Related to Highway Practices. Topic 53-11. Resilient Design with Distributed Rainfall Modeling

项目名称：	Synthesis of Information Related to Highway Practices. Topic 53-11. Resilient Design with Distributed Rainfall Modeling
摘要：	According to the National Oceanic and Atmospheric Administration, the number and cost of weather and climate-related disasters are increasing in the United States due to a combination of increased exposure, vulnerability, and the fact that climate change is increasing the frequency of extreme events. The increased frequency of hurricanes and severe storm events are requiring state departments of transportation (DOTs) to consider how to anticipate, plan for, and adapt to these changing conditions. In addition, DOTs are considering how to withstand, respond to, and recover more rapidly when disruptions occur. For these reasons, more complex hydrologic modeling that allows for scenario testing and impact assessment is needed. Distributed rainfall methods are models that use physical equations to describe rainfall patterns and water movement to create flow rates. Distributed rainfall models are hydrologic models that simulate runoff production, transport, and accumulation in waterways. These models split the watershed into small elements that are used to calculate and track infiltration and movement of runoff on the ground by using processed based equations. Increased computing power and modeling efficiency have made distributed rainfall models more cost effective for engineering projects. Because distributed models are process based, they also have more flexibility than statistical methods because they are not restricted to historical data. As a result, there has been increased interest among engineering practitioners in using distributed rainfall models to create more resilient designs. However, there has been little documented guidance on applying modern distributed rainfall models to help engineers use them in the highway design process. The objective of this synthesis is to document state DOT use of distributed rainfall models. The synthesis will focus on the use of distributed rainfall methods for hydrologic analyses for the planning, design, and operation of bridges and roadway projects. Information will be gathered through a literature review, a survey of state DOTs, and follow-up interviews with selected agencies for the development of case examples. Information gaps and suggestions for research to address those gaps will be identified.
状态：	Active
资金：	45000
资助组织：	National Cooperative Highway Research Program (NCHRP) Synthesis<==>American Association of State Highway and Transportation Officials (AASHTO)<==>Federal Highway Administration
项目负责人：	Gause, Jo Allen
执行机构：	Auburn University
开始时间：	20211007
主题领域：	Bridges and other structures；Construction；Design；Environment；Highways；Hydraulics and Hydrology；Planning and Forecasting