An Innovative Bicycle Roof Rack Using Sliding Rail Technology

Jawad, Badih; Pérez, José Antonio; Bachler, Johann; Cramb, R.; Notoci, J.; Yantus, C.

doi:10.4271/2000-01-3089

Cited by 2 publications

(2 citation statements)

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“…The Thomas et al (2014) study did not consider the FC penalty of an unloaded roof rack and the authors didnot extrapolate the vehicle-level FC impacts to the national fleet. Other studies explored roof racks' impacts on design, noise, and forces (Jawad, et al, 2000;Lee, et al, 2002;Karbon and Dietschi, 2005;Senthooran, et al, 2007;Mandadapu et al, 2011).…”

Section: )mentioning

confidence: 99%

“…In the United States (U.S,), the federal andstate governments have implemented regulations to reduce LDVfuel consumption and emissions (Al-Alawi and Bradley, 2014;Kirby, 1992;Goldberg, 1998;Morrison and Chen, 2011;Chen and Fan, 2013;Chen and Fan, 2014). Because of these regulations, the average fuel efficiency of thenew fleet of passenger cars and passenger truckshas increased from 28.7and 21.3 mile per gallon (MPG) in 2000to 35.5and 25.3 MPG in 2013, respectively (Bureau of Transportation Statistics, 2015. Similar trends in new vehicle fuel efficiencyare observed in the European Union and other countries (Global Fuel Economy Initiative, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Fuel consumption impacts of auto roof racks

Chen

Meier

2016

Energy Policy

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The after-market roof rack is one of the most common components attached to a vehicle for carrying over-sized items, such as bicycles and skis. It is important to understand these racks'fuel consumption impacts on both individual vehicles and the national fleet because they are widely used.We estimate the national fuel consumption impacts of roof racks using a bottom-up approach. Our model incorporates real-world data and vehicle stock informationto enable assessing fuel consumption impacts for several categories of vehicles, rack configurations, and usage conditions.In addition, the model draws on two new data-gathering techniques, on-line forums and crowd-sourcing. The results show that nationwide, roof racks are responsible for 0.8‰ oflight duty vehicle fuel consumption in 2015, corresponding to100million gallonsof gasoline per year. Sensitivity analyses show that results are most sensitive to the fraction of vehicles with installed roof racks but carrying no equipment. The aerodynamic efficiency of typical roof racks can be greatly improved and reduce individual vehicle fuel consumption; however, government policies to minimize extensive driving with empty racks-if successful-could save more fuel nationally.

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