The Effect of Restricted Budgets for Road Maintenance

Litzka, J; Weninger‐Vycudil, Alfred

doi:10.1016/j.sbspro.2012.06.1027

Cited by 5 publications

(3 citation statements)

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“…A quantification of deferred maintenance, also referred to as maintenance backlog (Gordon (1994); Summers and Glaeser (2017)), is regarded as a necessary input for multi-year budgeting, but it is rarely measured. Defined with reference to a pre-agreed minimum quality standard, the maintenance backlog estimates, also in monetary terms, the amount of unfulfilled maintenance demands to reach such minimum standard at any given point in time (see it applied in Litzka and Weninger-Vycudil (2012); Weninger-Vycudil and Litzka (2017); Fondazione Caracciolo (2018); or Dvorkin (2020)). In fact, this analytical tool provides a compelling argument in the hands of public administration entities when justifying the choice of spending on maintenance against other competing demands.…”

Section: Key Issues Affecting Infrastructure Maintenancementioning

confidence: 99%

Italy in Front of the Challenge of Infrastructure Maintenance: Existing Issues and Promising Responses

Mimmi¹

2023

Public Works Management & Policy

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It is puzzling how the optimal maintenance of infrastructure gets so little attention in the public policy debate and in national strategic infrastructure investment plans. In the case of Italy, an information deficit, inadequate strategic planning and governance, and unpreparedness for macro changes affecting infrastructure emerge as critical root causes of neglect. Despite the increasing attention to sustainability (at national, EU and international level), it is not consistently implemented along the life cycle of infrastructure assets, which would entail adequate funding to operate and maintain existing assets. Public administration plays a critical coordination role and must tackle the excessive normative complexity and consequent lengthiness of the authorization processes. Despite some unmet challenges, several ongoing interventions show Italy’s commitment to address some of the issues. Notably, the creation of an integrated repository tracking all the country’s infrastructure projects, or the national guidelines recently issued to rank and prioritize bridge safety interventions.

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Section: Key Issues Affecting Infrastructure Maintenancementioning

confidence: 99%

Italy in Front of the Challenge of Infrastructure Maintenance: Existing Issues and Promising Responses

Mimmi¹

2023

Public Works Management & Policy

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“…Among the activities that infrastructure management involves, maintenance management is becoming increasingly prevalent. In spite of the acknowledged fact that age affects the performance of civil infrastructures and their robustness against environmental and natural threats [1], investments in maintenance are still insufficient [2]. As a result, the maintenance backlog [3], which represents the number of unfulfilled maintenance demands concerning predefined security standards, is growing.…”

Section: Challenges In Infrastructure Managementmentioning

confidence: 99%

Integrating Cluster Analysis into Multi-Criteria Decision Making for Maintenance Management of Aging Culverts

Marsili

Bödefeld

2021

Mathematics

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Negligence in relation to aging infrastructure systems could have unintended consequences and is therefore associated with a risk. The assessment of the risk of neglecting maintenance provides valuable information for decision making in maintenance management. However, infrastructure systems are interdependent and interconnected systems of systems characterized by hierarchical levels and a multiplicity of failure scenarios. Assessment methodologies are needed that can capture the multidimensional aspect of risk and simplify the risk assessment, while also improving the understanding and interpretation of the results. This paper proposes to integrate the multi-criteria decision analysis with data mining techniques to perform the risk assessment of aging infrastructures. The analysis is characterized by two phases. First, an intra failure scenario risk assessment is performed. Then, the results are aggregated to carry out an inter failure scenario risk assessment. A cluster analysis based on the k-medoids algorithm is applied to reduce the number of alternatives and identify those which dominate the decision problem. The proposed approach is applied to a system of aging culverts of the German waterways network. Results show that the procedure allows to simplify the analysis and improve communication with infrastructure stakeholders.

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“…al. 2014); lack of personnel (Safaei et al, 2011;George-Williams and Patelli 2017); short-term financial constraints (Litzka and Weninger-Vycudil, 2012); unpredictable events (Liu et al, 2018;Zhong et al, 2019;Finkelstein et al, 2020); maintenance time-constraints (Irawan, 2017;Yang et al, 2017); system mission-constraints (Khatab et. al.…”

Section: Introductionmentioning

confidence: 99%

Preventive replacement with defaulting

Alotaibi

Cavalcante

Lopes

et al. 2020

IMA Journal of Management Mathematics

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This paper models age replacement and block replacement when there is the possibility of defaulting on the planned maintenance. A default occurs when a planned preventive replacement is not executed, and we discuss how defaults can arise in practice. Our aim is to study the robustness of block replacement and age replacement, bearing in mind that (a) these policies are frequently used in practice, (b) in the standard scenario (no defaulting) age replacement has a lower economic cost rate than block-replacement and (c) block replacement is simple to manage because component age does not have to be monitored. We model defaults as independent Bernoulli trials. We prove that a cost-minimizing critical age for replacement in the age policy with defaulting exists if the time to failure distribution has an increasing failure rate. A numerical study of the policies indicates that: age replacement is effective if maintenance control is good, that is, when there is only a small chance of defaulting; block replacement is relatively robust to defaulting (postponement), but less so to lack of knowledge about component reliability.

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The Effect of Restricted Budgets for Road Maintenance

Cited by 5 publications

References 0 publications

Italy in Front of the Challenge of Infrastructure Maintenance: Existing Issues and Promising Responses

Italy in Front of the Challenge of Infrastructure Maintenance: Existing Issues and Promising Responses

Integrating Cluster Analysis into Multi-Criteria Decision Making for Maintenance Management of Aging Culverts

Preventive replacement with defaulting

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