Susan A. Shaheen

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This paper evaluates the greenhouse gas (GHG) emission impacts that result from individuals participating in carsharing organizations within North America. The authors con ducted an online survey with members of major carsharing organizations and evaluated the change in annual household emissions (e.g., impact) of respondents that joined carsharing. The(More)
Carsharing (or short-term auto use) provides a flexible alternative that meets diverse transportation needs across the globe, while reducing the negative impacts of private vehicle ownership. More than 65 years ago, carsharing began appearing in Europe. It has expanded to approximately 1,100 cities worldwide, in 26 nations on five continents. This article(More)
The term “carsharing” refers to a distinct business process wherein CSOs typically provide their members with short-term vehicle access from a network of unstaffed and distributed neighborhood locations. Members pay a flat hourly or per mile fee, or both, that includes fuel and insurance costs. These characteristics make carsharing distinct from car rental,(More)
(CO2) and other greenhouse gases (GHGs) in the atmosphere. A key motivation for alternative-fuel vehicles, such as FCVs, is climate change, and recognition is growing across the globe. Approximately 14% of GHG emissions come from the transportation sector worldwide (1). GHG emissions from transportation are expected to increase rapidly over the next few(More)
Public bikesharing—the shared use of a bicycle fleet—has recently emerged in major North American cities. Bikesharing has been found to decrease driving and increase bicycling. But shifts in public transit have been mixed. The authors evaluate survey data from two U.S. cities to explore who is shifting toward and away from public transit as a result of(More)
Angiogenic switch marks the beginning of tumor's strategy to acquire independent blood supply. In some subtypes of non-Hodgkin's lymphomas, higher local vascular endothelial growth factor (VEGF) expression correlates with increased microvessel density. However, this local VEGF expression is higher only in tumors with elevated expression of the receptors of(More)
Most trips in U.S. metropolitan regions are drive-alone car trips, an expensive and inefficient means of moving people. A more efficient system would allow drivers to share cars. Such a system is often less convenient for travelers, but convenience can be enhanced by deploying “smart” technologies in concert with shared-use vehicles and transit. The(More)