Assessing the energy and greenhouse gas emissions mitigation effectiveness of potential US modal freight policies

Nealer, Rachael; Matthews, H. Scott; Hendrickson, Chris

doi:10.1016/j.tra.2011.11.010

Cited by 49 publications

(42 citation statements)

References 14 publications

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“…In some cases, the GreenConcrete LCA tool provides only CO 2eq for transportation. Based on mean energy and emission results of different modes of freight transportation in a study by Nealer et al (Nealer et al, 2012), a conversion factor of 15.0 MJ/kg CO 2eq was used to find the corresponding transportation energy. Default energy mixes for cement pyroprocessing was adopted.…”

Section: Figure 3: Plan View Of Functional Unitmentioning

confidence: 99%

Innovative Double Skin Façade (DSF) with High Performance Green Hybrid Fiber-Reinforced Concrete (HP-G-HyFRC) for Resilient and Sustainable Buildings

Hay

Ostertag

2015

Aei 2015

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Buildings are an integral part of the broader civil infrastructure that ensures our welfare, livelihood, safety, and security. However, the sector also represents a burden to the society. Globally, building sector accounts for about 40% of total primary energy use. Natural disasters such as windstorms or earthquakes can cost billions of dollars in damages to structural and non-structural components of buildings. In this study, a resilient and sustainable building envelope is proposed through an innovative air-cavity double-skin façade (DSF) system constructed with a new concrete composite called high performance green hybrid fiber-reinforced concrete (HP-G-HyFRC). Flexural test results show that the proposed DSF system has a higher structural capacity and ductility as compared to a typical solid façade system. Energy modelling shows that the DSF system reduces heating and cooling energy by 16.5%. Also, the higher embodied energy of the system can be recovered within the first year of operation while the additional cost within the first 7 years of operation. Enhancing the thermal resistance of the DSF by using expanded polystyrene in place of air further reduces operational energy and return period.

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Section: Figure 3: Plan View Of Functional Unitmentioning

confidence: 99%

Innovative Double Skin Façade (DSF) with High Performance Green Hybrid Fiber-Reinforced Concrete (HP-G-HyFRC) for Resilient and Sustainable Buildings

Hay

Ostertag

2015

Aei 2015

View full text Add to dashboard Cite

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“…Nealer et al used the survey data of the U.S. Department of Transportation Bureau of Statistics and the Bureau of Economic Analysis. They analyzed energy consumption and GHG emissions in the trucking sector and proposed an improvement program identified through scenario analysis [19]. Li et al [3] estimated Shanghai's CO 2 emissions from 1995 to 2006 according to the Intergovernmental Panel on Climate Change IPCC guidelines.…”

Section: Literature Reviewmentioning

confidence: 99%

Energy Consumption and Energy Efficiency of the Transportation Sector in Shanghai

Kai-ya

2014

Sustainability

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This article investigates changes in the transportation sector in Shanghai between 2000 and 2010 and the implications of this on transportation energy consumption and energy efficiency. The results show that from 2000 to 2010: (1) the traffic energy consumption increased from 597.96 million tons of carbon to 2070.22 million tons of carbon, with an average annual growth rate of 13.49%, and oil met 94.49% of this energy demand by 2010; (2) among present transportation modes, waterway transportation accounts for over 50% of the energy consumption within the transportation sector (on the dominant transportation modes for Shanghai residents, private car use accounted for the largest proportion of energy consumption, whereas rail transportation accounted for the smallest proportion of energy consumption); (3) the energy consumption per unit conversion traffic volume had an upward trend, whereas the energy consumption per unit output value showed a declining trend. Across the study period, the energy consumption elasticity coefficient is 0.94 on average, indicating that the change rate of energy consumption has lagged behind that of economic growth. Correspondingly, some recommendations for energy policy were presented.

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“…railways, fluvial, maritime, etc.) can reduce the energy and emissions, as well as improve road safety (Ecola et al, 2009, Nealer et al, 2012. The main objective of this work is to determine how partially removing the trucks from the total traffic through proposed traffic scenarios might affect the road safety and try to quantify this hypothetical impact through a statistical methodology based on the Markov Chain Monte Carlo (MCMC) simulation.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of the Effect of Decreasing Truck Traffic Flow on Safety on Almeria-Barcelona Corridor

Dadashova

2016

Libro De Actas CIT2016. XII Congreso De Ingeniería Del Transporte

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In this paper the effect of truck traffic on road safety has been analyzed through simulation study. The main objective of the study is to quantify the effect of the decreasing average annual daily traffic of heavy duty vehicles (trucks) on road safety. As the road safety indicators the frequency road accidents is considered. The data used in the study were collected from one of the most crowded routes in Spain which connects Almeria (southeast) with Barcelona (northeast). The observed data covers year 2010 and were classified into 2 road types: dual carriageways and toll roads. The estimation was carried out using negative binomial model and Markov Chain Monte Carlo simulation. Using the estimation results new traffic scenarios were proposed where the traffic flow is assumed to change its values. A total of 33 scenarios were proposed and new accidents data were generated through MCMC sampling. The comparison of the simulated and observed accident data shows that the effect of decreasing truck traffic flow could meliorate road safety in the route. The simulation tool could be applied to evaluate the effects of freight modal shift from road to rail.

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Assessing the energy and greenhouse gas emissions mitigation effectiveness of potential US modal freight policies

Cited by 49 publications

References 14 publications

Innovative Double Skin Façade (DSF) with High Performance Green Hybrid Fiber-Reinforced Concrete (HP-G-HyFRC) for Resilient and Sustainable Buildings

Innovative Double Skin Façade (DSF) with High Performance Green Hybrid Fiber-Reinforced Concrete (HP-G-HyFRC) for Resilient and Sustainable Buildings

Energy Consumption and Energy Efficiency of the Transportation Sector in Shanghai

Simulation Study of the Effect of Decreasing Truck Traffic Flow on Safety on Almeria-Barcelona Corridor

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