Life cycle sustainability assessment of a light rail transit system: Integration of environmental, economic, and social impacts

Gulcimen, Sedat; Aydoğan, Emel Kızılkaya; Uzal, Niğmet

doi:10.1002/ieam.4428

Cited by 22 publications

(10 citation statements)

References 44 publications

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“…Hospitals need to fully take into account the financial consumption in previous purchase and subsequent maintenance, human cost, and material consumption during equipment operation. In addition, the benefits generated when the equipment is put into use also should be considered [ 18 ]. The research results show that among the four large medical devices, Revolution 256 row has the best revenue, followed by Discovery MR 750 W and Signa 3.0 T HDxt, and Optima MR 360 W has a poor revenue and low profit.…”

Section: Discussionmentioning

confidence: 99%

Cost-Effectiveness of Life Cycle Cost Theory-Based Large Medical Equipment

Chang

Zhao

et al. 2022

Applied Bionics and Biomechanics

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The purpose of this study is to use the life cycle cost theory to analyze the efficiency of large medical equipment in hospitals, so as to implement life cycle cost (LCC) management and solve the current problems in hospitals. The analysis model of cost benefit of large medical equipment is established, and the cost-effectiveness of 4 large medical equipment between 2019 and 2021 is investigated and analyzed. In terms of the data in each information system of hospitals, the utilization of large medical equipment is quantitatively evaluated and analyzed by life cycle theory. The results show that the Revolution 256 row has the highest revenue of 113.29%. The annual depreciation of Signa 3.0 T HDxt is the highest, amounting to 4,160,000 yuan. However, there is lack of quality control and preventive maintenance of most equipment during use. The cost and benefit of large medical equipment in hospitals are analyzed, which demonstrates that Signa 3.0 T HDxt shows better effectiveness. Too high hospital warranty cost reflects the weak maintenance strength of hospital engineering technicians. The fundamental point of the maintenance and management of large medical equipment is to strengthen the performance evaluation of medical engineering technicians.

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Section: Discussionmentioning

confidence: 99%

Cost-Effectiveness of Life Cycle Cost Theory-Based Large Medical Equipment

Chang

Zhao

et al. 2022

Applied Bionics and Biomechanics

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“…The basic assumptions made have been presented: The life cycle length of the system is 50 years. The lifespan is the same as the lifespan assumed in previous works on a Chinese subway [ 22 ] and a light rail case [ 33 ]. Vehicles were absent from the system, and this could be attributed to the lack of data.…”

Section: Methodsmentioning

confidence: 99%

“…The life cycle length of the system is 50 years. The lifespan is the same as the lifespan assumed in previous works on a Chinese subway [ 22 ] and a light rail case [ 33 ].…”

Section: Methodsmentioning

confidence: 99%

Quantifying Carbon Emissions Generated by Monorail Transits: A Life Cycle Assessment Approach

Zhu

2022

Computational Intelligence and Neuroscience

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The use of rail transits results in the generation of a large amount of carbon emissions. Throughout the life cycle of a rail transit system, huge amounts of carbon are emitted, which contributes to the threat posed by carbon emission on the city ecosystem. Despite the many methods previously proposed to quantify carbon emissions from rail transit systems, a method that can be applied to measure carbon emissions of monorail systems is yet to be developed. We have used the life cycle assessment (LCA) method to propose a method that can be used to quantify carbon emissions from monorail transits. The life cycle of a monorail transit system was divided into four stages (production, construction, use, and end-of-life). A monorail transit line segment in Chongqing, China, was selected for a case study. The results show that the “use” stage of the monorail transit line system significantly increases (93.2%) carbon emissions, while the “end-of-life” stage does not contribute significantly to the total carbon emitted. The processes of generation of steal, concrete, and cement are the three leading processes that contribute to the emission of carbon dioxide. The percentages of carbon emitted during these processes are 32%, 29.6%, and 13.3%, respectively. Prestressed concrete activity accounts for the largest proportion (91.1%) of the total carbon emissions. The results presented herein can potentially help in realizing sustainable development and developing green transportation.

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“…In another study, Gulcimen et al [19] performed an LCSA of a light rail transit system using a cradle-to-grave approach in Turkey. The results revealed that for the LCA, the global warming potential and abiotic depletion potential of the light rail system were 0.024 kg CO 2 eq.…”

Section: Literature Review On Lcsamentioning

confidence: 99%

“…LCSA score for WtE (Lagos) = 0.7199 + 0.94680 + 1.3101 = 2.977 (19) The same steps were followed for WtE (Abuja).…”

Section: Admentioning

confidence: 99%

Life Cycle Sustainability Assessment of Electricity Generation from Municipal Solid Waste in Nigeria: A Prospective Study

2022

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Globally, rising population and rapid urbanisation have resulted in the dual issues of increased electricity demand and waste generation. These exacerbate diverse global problems, ranging from irregular electricity supply and inadequate waste management systems to water/air/soil pollution, climate change, etc. Waste-to-Energy (WtE) approaches have been proposed and developed to address simultaneously these two issues through energy recovery from waste. However, the variety of available waste materials and different WtE technologies make the choice of an appropriate technology challenging for decision-makers. The evaluation of the different WtE technologies in terms of their sustainability could provide a solid comparative base for strategic decision making in the power and waste management domains. This paper presents research conducted using a multidimensional Life Cycle Sustainability Assessment (LCSA) approach to estimate and compare the environmental, economic, and social impacts associated with the generation of electricity from Municipal Solid Waste (MSW) in two major cities, Lagos and Abuja, in Nigeria. These cities provide case studies in a developing world context to explore how their similarities and differences may influence the LCSA impacts for four WtE systems (Anaerobic Digestion, Incineration, Gasification, and Landfill Gas to Energy), and this is the first research of its kind. An LCSA ranking and scoring system and a muti-attribute value theory (MAVT) multi-criteria decision analysis (MCDA) were employed to evaluate the overall sustainability of the prospective use of WtE over a 20-year timeframe. The results from both approaches indicated that the adoption of WtE offered sustainability benefits for both cities, marginally more so for Lagos than Abuja. It was concluded that, for optimal benefits to be achieved, it is vital for decision-makers to think about the various trade-offs revealed by this type of analysis and the varying priorities of relevant stakeholders.

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Life cycle sustainability assessment of a light rail transit system: Integration of environmental, economic, and social impacts

Cited by 22 publications

References 44 publications

Cost-Effectiveness of Life Cycle Cost Theory-Based Large Medical Equipment

Cost-Effectiveness of Life Cycle Cost Theory-Based Large Medical Equipment

Quantifying Carbon Emissions Generated by Monorail Transits: A Life Cycle Assessment Approach

Life Cycle Sustainability Assessment of Electricity Generation from Municipal Solid Waste in Nigeria: A Prospective Study

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