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Design and Construction of an Urban Runoff Research Facility
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Planning green infrastructure placement based on projected precipitation data.

Olufemi A Omitaomu1, Susan M Kotikot2, Esther S Parish3

  • 1Computational Sciences and Engineering Division, Oak Ridge National Laboratory, USA.

Journal of Environmental Management
|December 14, 2020
PubMed
Summary

Green Infrastructure (GI) strategically placed in Knoxville, Tennessee, can mitigate urban flooding. High-priority sites are identified in central areas, offering guidance for sustainable urban planning and flood risk reduction.

Keywords:
Climate change adaptationDownscalingFloodsGreen infrastructureProjected precipitation

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Area of Science:

  • Environmental Science
  • Urban Planning
  • Climate Adaptation

Background:

  • Urbanization intensifies flooding due to reduced water infiltration and increased surface runoff.
  • Traditional gray infrastructure for runoff control is unsustainable in dynamic climate systems.
  • Green Infrastructure (GI) offers adaptable flood mitigation and additional urban environmental benefits.

Purpose of the Study:

  • To identify suitable Green Infrastructure (GI) sites in Knoxville, Tennessee, for flood mitigation.
  • To combine site characteristics and projected precipitation data for effective GI implementation.
  • To prioritize GI sites based on flood event impact and likelihood.

Main Methods:

  • Determined suitable GI sites using physical site characteristics indicating flood event impact.
  • Assessed flood event likelihood using projected precipitation data and existing flood zone information.
  • Integrated impact and likelihood data to establish low, medium, and high priority GI implementation sites.

Main Results:

  • Identified high-priority GI implementation sites concentrated in central Knoxville.
  • Demonstrated a decreasing priority of GI sites moving outward from the city center.
  • Developed a GI prioritization scheme for effective urban flood risk management.

Conclusions:

  • Strategic GI placement is crucial for maximizing flood mitigation effectiveness in urban areas.
  • The proposed prioritization scheme provides valuable guidance for city planners and policymakers.
  • This approach supports the sustainable integration of Green Infrastructure for climate resilience.