Greening Roadway Infrastructure with Vetiver Grass to Support Transportation Resilience

CivilEng

Sadik Khan¹  Karl Kim²  Sequoia Riley²  Elizabeth Fischer³ 

[1]Department of Civil and Environmental Engineering, Jackson State University, Jackson, MS 39217, USA

[2]Department of Urban and Regional Planning, University of Hawai’i at Mānoa, Honolulu, HI 96822, USA

[3]Hawai’i Emergency Management Agency, Honolulu, HI 96816, USA

关键词: transportation planning;    resilience;    flooding;    green infrastructure;    vetiver;   

DOI  :  10.3390/civileng3010010

来源: DOAJ

【 摘 要 】

With flooding and other weather events intensifying, more cost-effective erosion and flood control systems are needed. Vetiver (Chrysopogon zizanioides (L.) Roberty), is part of an arsenal of sustainable, low cost, and green infrastructure tools to reduce the risks of erosion, landslides, and flooding. This study investigates vetiver and its broader application to transportation planning. Based on a literature review and interviews with experts, vetiver as a green infrastructure tool is summarized. An evaluation framework was devised in which the plant’s effectiveness to stabilize hillsides and manage stormwater is investigated. This framework is applied to a recent highway flooding case where vetiver could have been used. While site-specific conditions and roadway requirements are critical to its effectiveness as a mitigation tool, additional pathways to understanding, acceptance, and use of vetiver to support transportation resilience requires convergence in engineering, design, and planning disciplines. Understanding barriers to the adoption of vetiver will also support efforts to increase other green infrastructure tools in transportation planning. Improvements in policies, standards, guidance and training and education on vetiver and green infrastructure will support the mitigation of transportation disruptions and community resilience.

【 授权许可】

Unknown