Life cycle environmental impact of a high-speed rail system in the Houston-Dallas I-45 corridor

Jesuina Chipindula (), Hongbo Du (), Venkata S. V. Botlaguduru (), Doeun Choe () and Raghava R. Kommalapati ()
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Jesuina Chipindula: Prairie View A&M University
Hongbo Du: Prairie View A&M University
Venkata S. V. Botlaguduru: Prairie View A&M University
Doeun Choe: Prairie View A&M University
Raghava R. Kommalapati: Prairie View A&M University

Public Transport, 2022, vol. 14, issue 2, No 10, 501 pages

Abstract: Abstract The Houston-Dallas (I-45) corridor is the busiest route among 18 traffic corridors in Texas, USA. The expected population growth and the surge in passenger mobility may result in a significant impact on the regional environment. This study uses a life cycle framework to predict and evaluate the net changes of environmental impact associated with the potential development of a high-speed rail (HSR) System along the I-45 corridor through its life cycle. The environmental impact is estimated in terms of CO2 and greenhouse gas (GHG) emissions per vehicle/passenger-kilometers traveled (V/PKT) using life cycle assessment. The analyses are performed referring to the Ecoinvent 3.4 inventory database through the phases: material extraction and processing, infrastructure construction, vehicle manufacturing, system operation, and end of life. The environmental benefit is evaluated by comparing the potential development of the HSR system with those of the existing transportation systems. The vehicle component, especially operation and maintenance of vehicles, is the primary contributor to the total global warming potential with about 93% of the life cycle GHG emissions. For the infrastructure component, 56.76% of GHG emissions result from the material extraction and processing phase (23.75 kgCO2eq/VKT). Various life cycle emissions of HSR except PM are significantly lower than for passenger cars.

Keywords: High-speed rail; Life cycle assessment; Environmental impact; GHG emissions; Transportation mode (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s12469-021-00264-2

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