The management of infrastructure assets is often challenged by uncertain factors such as changing weather trends and usage patterns. To reliably maintain the assets above a specified level of service, the extent of this uncertainty should be identified, and adequate methods for analyzing the risk factors should be implemented. The analysis of risk is well-defined in the field of strategic management. In the current study, four levels of uncertainty that are widely discussed in strategic management were used as a benchmark to determine the levels of uncertainty in infrastructure asset management. These levels range from known issues, to statistically predictable factors, to complete indeterminacy. The current methods of treating uncertainty in infrastructure asset management were reviewed to determine how they overlap with the four levels of uncertainty and whether or not asset managers handle this uncertainty in an optimal fashion. The current approaches in asset management were found to be primarily deterministic and probabilistic. A shortcoming was found in regard to the incorporation of risk analysis into asset management planning for large-scale networks. The researchers concluded that the level of uncertainty present in asset management at the network planning level can be best described as a range and addressed through the use of representative scenarios within that range.

基础设施资产的管理通常受到不确定因素的挑战，例如天气趋势和使用模式的变化。为了可靠地将资产维持在规定的服务水平之上，应确定这种不确定性的程度，并应采用适当的方法来分析风险因素。在战略管理领域，对风险的分析是明确定义的。在当前的研究中，战略管理中广泛讨论的四个不确定性水平被用作确定基础设施资产管理中不确定性水平的基准。这些级别的范围从已知问题到统计上可预测的因素，再到不确定性。审查了当前处理基础设施资产管理中不确定性的方法，以确定它们如何与四个不确定性水平重叠以及资产管理者是否以最佳方式处理此不确定性。发现资产管理中的当前方法主要是确定性的和概率性的。在将风险分析纳入大型网络的资产管理计划中，发现了一个缺点。研究人员得出的结论是，网络规划级别的资产管理中存在的不确定性级别可以最好地描述为一个范围，并可以通过使用该范围内的代表性方案来解决。发现资产管理中的当前方法主要是确定性的和概率性的。在将风险分析纳入大型网络的资产管理计划中，发现了一个缺点。研究人员得出的结论是，网络规划级别的资产管理中存在的不确定性级别可以最好地描述为一个范围，并可以通过使用该范围内的代表性方案来解决。发现资产管理中的当前方法主要是确定性的和概率性的。在将风险分析纳入大型网络的资产管理计划中，发现了一个缺点。研究人员得出的结论是，网络规划级别的资产管理中存在的不确定性级别可以最好地描述为一个范围，并可以通过使用该范围内的代表性方案来解决。