Ali Izaddoost’s research while affiliated with University of Tehran and other places

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Publications (3)


Modelling Principal-Agent Dilemma for Management of Resilience in Interdependent Infrastructure Systems
  • Article

June 2023

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56 Reads

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4 Citations

Reliability Engineering & System Safety

Ali Izaddoost

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Temporal dilemmas are observed between the short-term incentives of the asset managers, as agents, versus the long-term resilience driven goals of the organisations, who own and operate the infrastructure systems as principals. That is, the incentive mechanisms designed based on the short-term tenure of an asset manager may structurally deprive the infrastructure owner/operator organisations from directing resources towards their long-term resilience driven goals. Lack of long-term incentives by asset managers adds another layer to management of resilience in the context of infrastructure systems in their life cycle. We proposed a framework for integrating resilience into asset management of infrastructure systems and modelled it to explore the impact of such temporal dilemmas in principal-agent relations and potential strategic responses. The model reflects the interdependency of the sub-systems of infrastructures to assess each sub-system's periodic coupled resilience. The proposed integrated simulation reflects coupled impacts of shocks and stressors within regular asset management regimes. The simulation results provide quantitative evidence of how managerial and political dimensions can impact management of resilience in the context of infrastructure systems and open another discourse towards considering the complexities of organising for resilience in socio-technical systems.


Span of institutional logics for a range of procurement models (Matinheikki et al., 2021)
Conceptual model of volatile institutional complexity in PPP infrastructure provisions (Matinheikki et al., 2021)
Application of a bottom-up approach to estimate economic impacts of building maintenance projects: cladding rectification program in Australia

January 2022

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116 Reads

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11 Citations

Engineering Construction & Architectural Management

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Sajani Jayasuriya

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[...]

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Purpose This paper critically reviews economic impact assessment methods adopted in construction-related projects, to develop and present a novel bottom-up approach suitable to estimate regional economic impacts of building maintenance projects. Design/methodology/approach A thorough literature review of economic impact assessment in construction projects is carried out to identify the most relevant approach to estimate wider economic impacts of building maintenance projects. Based on these findings, a model based on the bottom-up approach to estimate wider economic impacts is developed. The applicability and face validity of the developed model is demonstrated through a case of cladding replacement program in Australia. Findings The literature review revealed that bottom-up models are better suited for estimating regional economic impacts of maintenance projects, given the challenges of obtaining micro-level economic data in the maintenance sector. In relation to the total economic impacts (direct and indirect), the results show that for every 1ofgovernmentspendingonsimilarprojectstheGrossStateProductwouldincreaseby1 of government spending on similar projects the Gross State Product would increase by 1.34. In terms of employment impact, over 70% of the direct economic value addition is driven by the increase in labour, where close to 3 FTE jobs will be required for each $1 million of spending on cladding replacement projects. Originality/value This paper presents a model to estimate the wider economic impacts of building maintenance projects, which is typically overlooked in the construction management field. The proposed model is developed to incorporate the variability of different building maintenance projects so that the economic impact resulting from these projects could be estimated more accurately. This model can be used by local government decision-makers to justify and prioritise maintenance projects in a similar manner to new construction projects.


Integrating resilience into asset management of infrastructure systems with a focus on building facilities

September 2021

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175 Reads

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13 Citations

Journal of Building Engineering

Asset managers are facing the challenges of shrinking budgets from one side and the increasing frequency and impact of disturbances on their assets from the other side. To further equip asset managers to address these challenges, we propose an analytical framework for resilient asset management based on an extension to the established analytical framework of resilience. The core concept of this extension is to understand the significance of two types of couplings, including: (i) the coupled impact of different categories of disturbances, including shocks and stressors, and (ii) the chronological coupling of events in life cycle of an asset. A dynamic model of the proposed framework for integrating resilience into regular asset management is developed for building facilities and is integrated with mathematical modeling of stressors and randomly generated shocks. The model is then simulated as the results pointed to the need to offset the overestimation of the resilience of assets by integrating the coupled impact of shocks and stressors and the compounding impact of multiple potential disturbances in its life cycle. The proposed approach can extend the existing asset management models to future proof the plans for the life cycle of an asset and align the maintenance, repair, or rehabilitation actions with the actions associated with resilience enhancement retrofits.

Citations (3)


... However, the dark side of projects as effective mechanisms to enhance resilience is the temporary nature of organizing that has implications for long-term goals and accountability of the involved actors (e.g., in retrofit projects, Izaddoost et al., 2023) as well as potential resilience traps (Rachunok & Nateghi, 2021) that lock the impacted communities in certain future scenarios. In this context, project scholars can go beyond studying the potential of projects in response to global grand challenges, but also critically review how projects did or did not deliver the long-term intended targets, what is the impact of projects in future scenarios, and if there were effective accountability mechanisms to ensure long-term resilience driven goals through temporary and ephemeral organizing. ...

Reference:

Resilience science: Theoretical and methodological directions from the juncture of resilience and projects
Modelling Principal-Agent Dilemma for Management of Resilience in Interdependent Infrastructure Systems
  • Citing Article
  • June 2023

Reliability Engineering & System Safety

... State-owned assets are an important material basis for teaching, research and other activities in higher vocational colleges and universities, and are also an important element in the management of higher vocational colleges and universities [14][15]. In recent years, with the growing scale of development of higher vocational colleges and universities and the increasing source of funds, the types and quantity of their assets are also increasing, but the problems of irrational asset allocation, idle assets, and waste of resources are also coming one after another [16][17]. Therefore, in order to achieve the goals of utilizing the existing assets, optimizing resource allocation, improving the effective utilization of assets, and enhancing the asset management level of higher vocational colleges and universities, the establishment of a set of scientific and standardized index systems suitable for the evaluation of asset performance of higher vocational colleges and universities is imminent [18][19][20][21]. ...

Integrating resilience into asset management of infrastructure systems with a focus on building facilities
  • Citing Article
  • September 2021

Journal of Building Engineering

... Moreover, other authors have focused on the integration of disruptive technologies and the power of artificial intelligence in building construction (Hamida et al., 2021). The discussion of decision-making is essential to change current construction paradigms and promote an impact assessment that can determine the optimal parameters of dwellings (Sohn et al., 2017), or regarding the study of costs and prices (Teo et al., 2022). ...

Application of a bottom-up approach to estimate economic impacts of building maintenance projects: cladding rectification program in Australia
  • Citing Article
  • January 2022

Engineering Construction & Architectural Management