An assessment of the CO 2 emissions reduction in high speed rail lines: Two case studies from Turkey

Dalkıç, Gülçin; Balaban, Osman; Tuydes-Yaman, Hediye; Celikkol-Kocak, Tümay

doi:10.1016/j.jclepro.2017.07.045

Cited by 76 publications

(51 citation statements)

References 22 publications

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“…There has also been a progressive adoption of the LCA methodology in discrete application types. Thus, some studies have focused on tailpipe (rolling stock) emissions (Dalkic et al 2017;Andrade and D'Agosto 2016;Pero et al 2015;Esters and Marinov 2014); while others on non-tailpipe -that is, rail infrastructure emissions (Bressi et al 2018;Krezo et al 2018;Ortega et al 2018); yet a third category on integrated assessments -that is, both tailpipe and non-tailpipe emissions (Saxe et al 2016; Westin and Kågeson 2012). There is evidence that studies on tailpipe emissions are more popular (Rocha et al 2018; De Martinis and Corman 2018; Meynerts et al 2017;Chester et al 2013) owing largely to the ease of their validation via comparison with other modes of rail transport (Esters and Marinov 2014).…”

Section: Literature Reviewmentioning

confidence: 99%

Exploring the Development of a BIM-Enabled Process Framework for LCA of Rail Tracks

Akponeware¹,

Dawood²,

Rodríguez³

et al. 2020

CIB W78 Proceedings

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A key 21st century infrastructure challenge is lowering cost and carbon over an infrastructure's whole lifecycle. But, accounting for the carbon footprint of a railway system is problematic due to the complexity of railway systems. Within the rail sector, there is still a lack of infrastructure frameworks which can accurately capture actions, interactions and associated processes by role actors during lifecycle analysis. Whilst there is increased focus to facilitate information digitisation in railway systems, there is a scarcity of literature which attempt to systematise and formalise the process of conducting lifecycle analysis (LCA) of railway systems. This paper identifies complexities associated with legacy LCA methodologies in the rail sector. It then proposes a methodology which applies design science techniques to facilitate the creation and re-use of information and data in a systematic way within a structured process workflow. The proposed methodology enables lifecycle information for a rail-track to be produced collaboratively in an integrated format. In addition, the proposed LCA technique allows the creation of LCA process workflows which can be deployed to the web, potentially integrating with other optioneering applications and BIM platforms.

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Section: Literature Reviewmentioning

confidence: 99%

Exploring the Development of a BIM-Enabled Process Framework for LCA of Rail Tracks

Akponeware¹,

Dawood²,

Rodríguez³

et al. 2020

CIB W78 Proceedings

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“…This study did not consider studies where it was not possible for a reader to calculate the embodied GHG emissions separately from operational emissions (Åkerman 2011, Pan et al 2013, Tarnoczi 2013, Warren and Ieromonachou 2013, Timmermann and Dibdiakova 2014, Matan et al 2015, Steffen et al 2015, Krezo et al 2016, Dalkic et al 2017 or studies which did not consider non-operational emissions ( The final body of literature consisted of 22 publications, including 57 unique infrastructure cases, which were used to develop a database reporting the key elements of published embodied GHG assessment in rail infrastructure. Since the data were collected by the authors of the respective publications, they are considered as secondary data (Irwin 2013).…”

Section: Selection Of Reviewed Papersmentioning

confidence: 99%

Embodied emissions in rail infrastructure: a critical literature review

Olugbenga

Kalyviotis

Saxe

2019

Environ. Res. Lett.

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This paper investigates the state of knowledge in quantifying the embodied greenhouse gas (GHG) emissions in rail infrastructure and develops a sketch model for estimating the GHG impact of rail infrastructure based on the literature. A literature review identified 22 publications, containing 57 case studies, at least touching on the embodied GHG for different types of rail infrastructure. The cases studies include high speed rail, intercity rail, light rail, commuter rail, heavy rail, freight, and metro rail. The paper examines the GHG impact per kilometre of rail infrastructure reported across the case studies and compares the boundaries, functional units, methods, and data used. Most studies employed process-based LCA for an attributional analysis. The embodied emissions associated with the case studies range from 0.5 to 12 700 tCO 2 km −1 ; much of the variation is dependent on the proportion of the rail line at-grade, elevated, or in a tunnel. However, large ranges in GHG per kilometre remain after controlling for elevated and tunneled distance. Comparing the embodied emissions across the rail types was challenging, due to the large variations in system boundaries, study goals, and inventory methods adopted in the publications. This review highlights the need for standardization across the reporting of embodied GHG for rail infrastructure to better facilitate hot spot detection, engineering design and GHG policy decision making. The statistical model finds that overall ∼941(±168) tCO 2 e are embodied per kilometre of rail at-grade, and tunneling has 27 (±5) times more embodied GHG per kilometre than at-grade construction. The statistical model is based on the findings of published literature and does not explicitly consider function, geometry, specifications, emphasis on whole lifecycle, legislative constraints, socio-economic factors, or the physical and environmental conditions of the construction site.

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“…The final calculations of these unknown variables give us information on energy consumption and greenhouse gas emissions, both in the sum of primary and secondary emissions and in the value of primary emissions only [9].…”

Section: European Standard En 16258:2012mentioning

confidence: 99%

Application of the methodology related to the emission standard to specific railway line in comparison with parallel road transport: a case study

et al. 2018

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At present, the impact of transport on the environment constitutes a serious problem. This mainly concerns energy consumption and production of greenhouse gases (GHG) that via their participation in greenhouse effect intensification contribute to global warming. In this paper, the calculations provided by the EN 16258: 2012 methodology will be applied to two modes of transport: railway and road transport. Subsequently, the methodology will be applied to a case study of a selected nonelectrified railway line in comparison with parallel road transport. In particular, energy consumption and production of greenhouse gases will be monitored depending on traveling the distance between selected cities in the Czech Republic.

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An assessment of the CO 2 emissions reduction in high speed rail lines: Two case studies from Turkey

Cited by 76 publications

References 22 publications

Exploring the Development of a BIM-Enabled Process Framework for LCA of Rail Tracks

Exploring the Development of a BIM-Enabled Process Framework for LCA of Rail Tracks

Embodied emissions in rail infrastructure: a critical literature review

Application of the methodology related to the emission standard to specific railway line in comparison with parallel road transport: a case study

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