Several studies have confirmed the geocell reinforcement system as potential road material. However, there is a wide gap between the number of research studies evaluating the geocell in the laboratory and those dealing with road design methods using the geocell. Due to this gap, the geocell system has not reached its full potential in highways. The present study proposes fragility modeling to design low volume roads by considering the geocell reinforced layer's modulus. A predictive model was developed to estimate the geocell layer's modulus using laboratory and finite element analysis results. The results indicate that geocell reinforcement reduces the stresses on the underlying road layers. The developed fragility approach is then used to examine three road designs for Texas's low volume road involving different geocell reinforced layers. The obtained fragility curves indicate the reliability of each of the three road designs against the traffic load and can thereby assist decision-makers in selecting the optimum design. By designing geocell reinforced roads via fragility modeling, highway officials will be able to integrate any uncertainties in the design inputs and check designs against road performance criteria such as rutting and fatigue cracking, and against decision criteria such as cost, emissions, etc.

多项研究已证实土工格室加固系统是潜在的道路材料。然而，在实验室评估土工格室的研究数量与使用土工格室处理道路设计方法的研究数量之间存在很大差距。由于这一差距，土工单元系统在高速公路上还没有发挥其全部潜力。本研究提出了通过考虑土工格室增强层的模量来设计低容量道路的脆弱性建模。使用实验室和有限元分析结果开发了一个预测模型来估计土工格室层的模量。结果表明，土工格室加固降低了底层道路层的应力。然后使用开发的脆弱性方法检查德克萨斯州的三个道路设计 涉及不同土工格室加固层的低容量道路。获得的脆弱性曲线表明了三种道路设计中每一种在交通负荷下的可靠性，从而可以帮助决策者选择最佳设计。通过脆弱性建模设计土工格室加固道路，公路官员将能够整合设计输入中的任何不确定性，并根据道路性能标准（如车辙和疲劳开裂）以及成本、排放等决策标准检查设计。