Impacts of Stacking Plans on Carbon Emissions during Transportation of Prefabricated Exterior Wall Panels
Publication: Computing in Civil Engineering 2021
ABSTRACT
Stacking plans of prefabricated exterior wall panels determine how the panels should be stacked and transported, and to generate these plans, practitioners must carefully consider parameters that affect the logistics processes of stacking, transportation, and installation. In the previous study, the authors developed the panel stacking plan generator (PSPG), a methodology that allows practitioners to generate stacking plans for prefabricated exterior wall panels based on input parameters such as panel dimensions, trailer dimensions, installation sequence, reshuffling effort cutoff, and stability cutoff. The methodology can inform practitioners about how the generated stacking plans impact logistics processes and how much cost, schedule, and safety benefits they can realize by using prefabricated wall panels. However, the methodology does not inform them about how the generated plans affect the environmental sustainability, especially CO2 emissions from transportation. In this research, the authors conducted a sensitivity analysis using stacking plan data from a real construction project to study how fuel economy (FE), distance, payload weight, and gross combined vehicle weight (GCVW) each impacts the CO2 emissions from transportation. The results show that emissions were more sensitive to FE (–0.83 to –1.25 relative marginal rate) and distance (directly proportional) than payload weight (0.024–0.027 relative marginal rate) and GCVW (0.10–0.09 relative marginal rate). These insights can inform practitioners about how to realize environmental sustainability benefits when determining stacking plans and logistics of prefabricated wall panels.
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Computing in Civil Engineering 2021
Pages: 1136 - 1143
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Published online: May 24, 2022
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