Best Practices for Distributed Rainfall-Runoff Models to Transform Hydrologic and Hydraulic Modeling for Resilient Transportation Planning and Design

Distributed Rainfall-Runoff Models (DRRMs) are the primary tool that will be needed to assess future precipitation impacts to the transportation system. NCHRP Synthesis 602: Resilient Design with Distributed Rainfall-Runoff Modeling identified that the use of DRRMs is still limited. The synthesis also suggested for future research the development of a document focused on developing case studies that will demonstrate how to best create and apply DRRMs in the context of transportation infrastructure. The proposed research will focus on the capabilities of these models to effectively model future rainfall conditions for resilient, adaptive planning and design. Without DRRM guidelines, professionals will be limited in their use of current precipitation frequency estimations from NOAA’s ATLAS 15 model. The objective of this research is to begin transforming the state of practice in transportation hydraulic and hydrologic modeling and provide essential guidelines needed to fully leverage ATLAS 15, which will provide future rainfall data for the United States by 2026. DRRMs allow engineers and planners to assess rainfall and associated flooding vulnerabilities on transportation infrastructure. Currently there are no guidelines for DRRMs in a transportation context, and state DOTs’ ability to successfully leverage ATLAS 15 will be supported by this research. A practice manual for the application of DRRMs for resilient transportation planning and design will be developed to achieve the project objective.


  • English


  • Status: Proposed
  • Funding: $700000
  • Contract Numbers:

    Project 08-186

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Brooks, Michael

  • Start Date: 20240520
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01919147
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 08-186
  • Files: TRB, RIP
  • Created Date: May 20 2024 9:14PM