当前位置: X-MOL 学术Transp. Res. Rec. J. Transp. Res. Board › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Incorporating Flood Hazards into Pavement Sustainability Assessment
Transportation Research Record: Journal of the Transportation Research Board ( IF 1.6 ) Pub Date : 2021-05-29 , DOI: 10.1177/03611981211014525
Jessica Achebe 1 , Oluremi Oyediji 1 , Rebecca K. Saari 1 , Susan Tighe 2 , Filzah Nasir 1
Affiliation  

The functional and structural performance of pavement infrastructures are at risk from climate change impacts. However, past sustainability assessment studies do not consider how the performance of infrastructure will be affected by a changing climate. The goal of this research is to investigate the impacts of flooding in a unified assessment of the resilience and sustainability of pavement. A case study of concrete pavement was evaluated for scenarios with and without flooding. The AASHTOWare Pavement ME design program was used to simulate the structural performance of typical jointed plain concrete pavement (JPCP) designs for collector roads in Canada. Predicted performance was used in the resilience and sustainability assessment under scenarios with and without flooding. The damage ratio and cost of damage were assessed to quantify the resilience of concrete pavement to floods. Life cycle costs and environmental impacts were compared across a climate change scenario with consideration of maintenance and rehabilitation activities. Results reveal that a typical Ontario JPCP design with structural slab thickness < 200 mm is less resilient than the Manitoba design for collector roads, but the 25 mm slab thickness difference in Manitoba design can lead to 50% change in damage ratio and damage cost. When estimating the social cost associated with greenhouse gas and air pollutant emissions, the additional environmental impact resulting from flooding for the Ontario road is almost seven times that of the Manitoba road. However, the life cycle economic cost and environmental impact do not yield an overall benefit with increased slab thickness.



中文翻译:

将洪水灾害纳入路面可持续性评估

路面基础设施的功能和结构性能受到气候变化影响的风险。然而,过去的可持续性评估研究并未考虑基础设施的性能将如何受到气候变化的影响。本研究的目标是调查洪水对路面弹性和可持续性的统一评估的影响。对混凝土路面的案例研究进行了评估,以评估有无洪水的情况。AASHTOWare Pavement ME 设计程序用于模拟加拿大集水道典型接缝素混凝土路面 (JPCP) 设计的结构性能。在有和没有洪水的情况下,预测性能被用于复原力和可持续性评估。评估损坏率和损坏成本,以量化混凝土路面对洪水的恢复能力。在考虑维护和修复活动的情况下,比较了整个气候变化情景中的生命周期成本和环境影响。结果表明,结构板厚度 < 200 毫米的典型安大略 JPCP 设计比马尼托巴集水道设计的弹性要低,但马尼托巴设计中 25 毫米的板厚度差异会导致损坏率和损坏成本发生 50% 的变化。在估算与温室气体和空气污染物排放相关的社会成本时,安大略公路洪水造成的额外环境影响几乎是曼尼托巴公路的七倍。然而,

更新日期:2021-05-30
down
wechat
bug