scholarly journals SUSTAINABILITY AND RESILIENCE IN THE REHABILITATION OF ROAD INFRASTRUCTURES AFTER AN EXTREME EVENT: AN INTEGRATED APPROACH

2017 ◽  
Vol 12 (3) ◽  
pp. 154-160 ◽  
Author(s):  
Marinella Giunta
Keyword(s):  
Life Cycle ◽  
Efficient Solution ◽  
Social Issues ◽  
Extreme Event ◽  
Integrated Approach ◽  
The Other ◽  
Future Generations ◽  
Life Cycle Costs ◽  
Road Design ◽  
Maintenance And Rehabilitation

For road infrastructures, the concepts of sustainability and resilience are becoming more and more relevant. The sustainability is closely linked with the concept of development that meets the needs of the present without compromising the ability of future generations to meet their own needs. The resilience is usually connected with the occurrence of extreme events or unusual disturbances (earthquake, landslide, floods) during the life cycle of infrastructures and refers to their ability of recover the previous functionality. Usually, the two concepts that account for two desired qualities of the infrastructures are applied following separate approaches. Better choices in road design, maintenance and rehabilitation should lead to an improvement of both qualities. On the other hand, an in deep analysis of the sustainability and resilience demonstrates a significant number of similar characteristics. In the light of the above premises, in the present paper, the suitability of an integrated approach in the choice of the rehabilitation alternatives after an extreme event is evaluated. A method to assess the sustainability, based on life cycle costs, and to estimate the resilience is setup. It resulted that an integrated perspective can be pursued and both resilience and sustainability allow addressing an appropriate amount of technical, economic and environmental/social issues and can lead to identifying the most efficient solution of rehabilitation.

scholarly journals An integrated approach to calculate life cycle costs of arms and military equipment

2013 ◽  
Vol 61 (4) ◽  
pp. 138-160 ◽  
Author(s):  
Vlada S. Sokolović ◽  
Marko D. Andrejić ◽  
Srđan D. Ljubojević
Keyword(s):  
Life Cycle ◽  
Integrated Approach ◽  
Life Cycle Costs ◽  
Military Equipment

An Integrated Approach to Pipeline Buoyancy Control and Implementation

2004 ◽  
Author(s):  
Lance N. Thomas ◽  
James Henderson
Keyword(s):  
Life Cycle ◽  
Integrated Approach ◽  
Lessons Learned ◽  
Life Cycle Costs ◽  
Case Study Approach ◽  
Study Approach ◽  
Construction Strategies ◽  
Buoyancy Control

A case study approach clearly demonstrates how to integrate various investigative methods with design, procurement, contracting and construction strategies to significantly reduce life cycle costs for a recently constructed operating pipeline. Emergent strategies based on lessons learned throughout the process are presented based on an after construction review.

Shipyard Facilities—New and Old Closures for Dry Docks

1987 ◽  
Vol 3 (03) ◽  
pp. 155-164
Author(s):  
Jay J. Hassani
Keyword(s):  
Life Cycle ◽  
Capital Investment ◽  
The Other ◽  
Life Cycle Costs ◽  
The Third ◽  
The Many

Among the many old and new shipyard facilities, this paper depicts three types of closures for dry docks, one old and the other two new, and discusses them from the standpoint of operation, capital investment, life cycle costs, and adaptability to specific sites. The first is a sliding caisson, used in the 40's, the second an innovative double keel caisson, and the third is a seldom-used cantilever-type flap gate, which appears to have great potential. In addition, a recently installed intermediate dock gate is presented.

scholarly journals Valuing Sustainability of Adaptable Infrastructure Using ROA-SEC: A Hybrid Approach

2019 ◽  
Vol 7 (1) ◽  
pp. 67-79
Author(s):  
Reza Taheriattar
Keyword(s):  
Life Cycle ◽  
Social Issues ◽  
Hybrid Approach ◽  
Social Aspects ◽  
Life Cycle Costs ◽  
Discounted Cash Flow ◽  
Single Measure ◽  
Valuation Method ◽  
Waste Production ◽  
Consumption Waste

Infrastructure providing fundamental services for societies may become obsolete under changing environments such as climate or demographics changes, creating the need for adaptability. Designing infrastructure for adaptability may affect life cycle costs as well as environmental and social issues such as resources consumption, waste production or disruption to services provided. Sustainability valuation of adaptable infrastructure is thus required. The Real Options Analysis (ROA) is widely used to evaluate financial viability of investing in adaptable infrastructure. But, the environmental and social aspects have been barely noticed and incorporated. Hence, a valuation method is required to properly address all aspects of sustainability. This paper bridges the gap and advances the literature by presenting a methodology for designed-in adaptability valuation, considering all the sustainability aspects. To this end, a hybrid approach is suggested through integration of Social and Environmental Costing (SEC) with ROA, providing a single measure for sustainability of adaptable infrastructure. In this approach, the outputs of Life Cycle Assessment (LCA) tools are monetized using SEC methods; and then incorporated in the ROA that is built on the probabilistic Discounted Cash Flow (DCF) analysis, suitable for engineering applications. The application of the proposed approach is illustrated on a case example involving seawalls under changing climate effects. For the case example, including sustainability issues in the analysis improved the viability of designing in adaptability. This conclusion cannot be generalized and each situation requires an individual analysis. However, the proposed approach and methodology will be the same in all the situations.

scholarly journals Problems and perspectives in weed management

2021 ◽  
Author(s):  
Donato Loddo ◽  
J. Scott McElroy ◽  
Vittoria Giannini
Keyword(s):  
Natural Products ◽  
Weed Management ◽  
Management Practices ◽  
Integrated Approach ◽  
The Other ◽  
Future Generations ◽  
Past Century ◽  
Transgenic Technology ◽  
New Paradigm ◽  
The Past

Despite the wide use of herbicides in the past century, their use is decreasing due to rising resistance phenomena, absence of discovery of new modes of actions and more regulatory restrictions. On the other hand, several tactics and technologies have developed recently providing alternatives from mechanical, cultural, robotic and natural products use perspectives, that could profitably enhance weed management within the agroecosystem and usher in a new paradigm of weed management that integrates chemical and non-chemical weed management practices. In the next future, herbicide will remain an important tool for weed management and will be increasingly complemented by other innovative tactics and tools in a IWM perspective. This integrated approach would thus preserve the chemical and transgenic technology for future generations.

Life-Cycle Costs of Selected Uniformed Health Professions (Phase II: The Impact of Constraints and Policies on the Optimal-Mix-of-Accession Model)

2003 ◽  
Author(s):  
Shayne Brannman ◽  
Eric W. Christensen ◽  
Ronald H. Nickel ◽  
Cori Rattelman ◽  
Richard D. Miller
Keyword(s):  
Life Cycle ◽  
Phase Ii ◽  
Health Professions ◽  
Life Cycle Costs ◽  
Optimal Mix ◽  
The Impact

scholarly journals Evaluating Life Cycle of Buildings Using an Integrated Approach Based on Quantitative-Qualitative and Simplified Best-Worst Methods (QQM-SBWM)

2021 ◽  
Vol 13 (8) ◽  
pp. 4487
Author(s):  
Maghsoud Amiri ◽  
Mohammad Hashemi-Tabatabaei ◽  
Mohammad Ghahremanloo ◽  
Mehdi Keshavarz-Ghorabaee ◽  
Edmundas Kazimieras Zavadskas ◽  
...  
Keyword(s):  
Life Cycle ◽  
Computer Software ◽  
Integrated Approach ◽  
Comfort Level ◽  
Combination Method ◽  
New Combination ◽  
Numerical Examples ◽  
Environmental Consequences ◽  
Time Required

Evaluating the life cycle of buildings is a valuable tool for assessing sustainability and analyzing environmental consequences throughout the construction operations of buildings. In this study, in order to determine the importance of building life cycle evaluation indicators, a new combination method was used based on a quantitative-qualitative method (QQM) and a simplified best-worst method (SBWM). The SBWM method was used because it simplifies BWM calculations and does not require solving complex mathematical models. Reducing the time required to perform calculations and eliminating the need for complicated computer software are among the advantages of the proposed method. The QQM method has also been used due to its ability to evaluate quantitative and qualitative criteria simultaneously. The feasibility and applicability of the SBWM were examined using three numerical examples and a case study, and the results were evaluated. The results of the case study showed that the criteria of the estimated cost, comfort level, and basic floor area were, in order, the most important criteria among the others. The results of the numerical examples and the case study showed that the proposed method had a lower total deviation (TD) compared to the basic BWM. Sensitivity analysis results also confirmed that the proposed approach has a high degree of robustness for ranking and weighting criteria.

Impacts of Various Maintenance Tasks on Life-cycle Costs of a Power Grid Project

2020 ◽  
Author(s):  
Shuyan Zhang ◽  
Shuyin Duan ◽  
Fushuan Wen ◽  
Farhad Shahnia ◽  
Qingfang Chen ◽  
...  
Keyword(s):  
Life Cycle ◽  
Power Grid ◽  
Life Cycle Costs
Sign in / Sign up

Export Citation Format

Share Document