Emissions and fuel consumption of a Euro 4 car operating along different routes in Hong Kong

Tsang, K.S.; Hung, W.T.; Cheung, Chun Shun

doi:10.1016/j.trd.2011.02.004

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…Furthermore, it has not been established that the over-consumption caused by traveling uphill is compensated for by the reduced consumption when traveling downhill. Some studies have researched the influence of road grades on energy consumption and emissions in real-life experiments (Pierson et al 1996;Cicero Fernandez et al 1997;Colberg et al 2005;Tsang et al 2011) and some approaches have been developed from the experimental experiences (Hassel and Weber 1997;Park and Rakha 2006;Boriboonsomsin and Barth 2009;Shuangjian et al 2011). Park and Rakha (2006) demonstrated that the impacts of road gradients are significant.…”

Section: Road Gradient Effectmentioning

confidence: 99%

Reduced Carbon and Energy Footprint in Highway Operations: The Highway Energy Assessment (HERA) Methodology

2014

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Global demand for mobility is increasing and the environmental impact of transport has become an important issue in transportation network planning and decisionmaking, as well as in the operational management phase. Suitable methods are required to assess emissions and fuel consumption reduction strategies that seek to improve energy efficiency and furthering decarbonization. This study describes the development and application of an improved modeling framework -the HERA (Highway EneRgy Assessment) methodology -that enables to assess the energy and carbon footprint of different highways and traffic flow scenarios and their comparison. HERA incorporates an average speed consumption model adjusted with a correction factor which takes into account the road gradient. It provides a more comprehensive method for estimating the footprint of particular highway segments under specific traffic conditions. It includes the application of the methodology to the Spanish highway network to validate it. Finally, a case study shows the benefits from using this methodology and how to integrate the objective of carbon footprint reductions into highway design, operation and scenario comparison.

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Section: Road Gradient Effectmentioning

confidence: 99%

Reduced Carbon and Energy Footprint in Highway Operations: The Highway Energy Assessment (HERA) Methodology

2014

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“…De Vlieger et al (2000) studied the influence of driving behavior and traffic conditions on fuel consumption and emissions of nine passenger cars. Tsang et al (2011) examined the effects of road gradient and traffic conditions on the emissions and fuel consumption of a Euro 4 gasoline car. No comparison has been reported between the energy and the environmental impacts of different urban transportation modes in these works.…”

Section: Introductionmentioning

confidence: 99%

Energy and Environmental Impacts of Urban Buses and Passenger Cars–Comparative Analysis of Sensitivity to Driving Conditions

Tartakovsky

Gutman

Popescu

et al. 2013

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A methodology is suggested for a comparative analysis of energy and environmental impacts of various urban transport modes. A total emission indicator is used as a tool for integral assessment of vehicle emissions. An environmental impact factor is suggested in order to compare between the various transport modes that use different energy sources. Vehicle occupancy values, yielding equality of the specific environmental impact factors and specific energy consumption of the compared transport modes are used for the analysis purposes. This methodology is applied for a comparison between the buses and the passenger cars at various levels of service, road gradients and urban road types. The comparison results reveal that the environmental impact of the bus for driving at an urban access road falls below the one of the passenger car when the bus occupancy is 14-18 persons. Urban buses turn out to be energetically beneficial over passenger cars at occupancy values substantially lower compared with those providing a similar environmental impact.

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Characteristics of volatile organic compounds from motorcycle exhaust emission during real-world driving

Tsai

Huang

Chiang

2014

Atmospheric Environment

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Emissions and fuel consumption of a Euro 4 car operating along different routes in Hong Kong

Cited by 9 publications

References 3 publications

Reduced Carbon and Energy Footprint in Highway Operations: The Highway Energy Assessment (HERA) Methodology

Reduced Carbon and Energy Footprint in Highway Operations: The Highway Energy Assessment (HERA) Methodology

Energy and Environmental Impacts of Urban Buses and Passenger Cars–Comparative Analysis of Sensitivity to Driving Conditions

Characteristics of volatile organic compounds from motorcycle exhaust emission during real-world driving

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