نتایج جستجو برای: transportation modes

تعداد نتایج: 165648  

صفاکیش, محمد کاظم, منظور, داوود,

Increase in environmental pollutions of fossil fuels calls for policies stimulating clean technology deployment especially in the transportation sector. To evaluate the efficacy of these policies we should explore the preferences of consumers regarding different technologies. In this paper we use a discrete choice approach used in “Canadian Integrated Model system” (SIMS) to identify the behavi...

This paper introduces a Travel Demand Management (TDM) model in order to decrease the transportation externalities by affecting on passengers’travel choices. Thus, a bi-objective bi-modal optimization model for road pricing is developed aiming to enhance environmental and social sustainability by considering to minimize the air pollution and maximize the social welfare as its objectives. This m...

2012
Jianqiu Xu

In spite of massive research having been conducted on moving objects databases, existing methods can not manage moving objects with transportation modes and covering multiple environments, e.g., Walk → Car → Indoor. The current techniques target a single environment, for example road network. But humans’ movement can include several environments like roads, pavement areas, buildings, which impo...

2011
Fabio De Felice Antonella Petrillo

Today, billions of dollars are being spent annually world wide to develop, manufacture, and operate transportation system such trains, ships, aircraft, and motor vehicles. Around 70 to 90 percent of transportation crashes are, directly or indirectly, the result of human error. In fact, with the development of technology, system reliability has increased dramatically during the past decades, whi...

2003
Alexander E. Farrell David W. Keith James J. Corbett

Considerable effort is being expended on research and demonstration projects aimed at introducing hydrogen into the transportation sector as a fuel, generally motivated by concerns about carbon dioxide emissions and petroleum imports (or scarcity). In this paper we focus on one aspect of strategy for introducing hydrogen—the choice of transportation mode. Our analysis suggests that cost of intr...

2016
Junfeng Jiao

Food deserts-areas with a significant low-income population experiencing low accessibility to healthy food sources-have been well studied in terms of their connection to obesity and its related health outcomes. Measuring food accessibility is the key component in food desert research. However, previous studies often measured food accessibility based on large geographic units (e.g. census tract,...

Journal: :CoRR 2016
Sahar Bsaybes Alain Quilliot Annegret Wagler

The VIPAFLEET project consists in developing models and algorithms for managing a fleet of Individual Public Autonomous Vehicles (VIPA). Hereby, we consider a fleet of cars distributed at specified stations in an industrial area to supply internal transportation, where the cars can be used in different modes of circulation (tram mode, elevator mode, taxi mode). One goal is to develop and implem...

Journal: :European Journal of Operational Research 2013
Javier García José E. Flórez Álvaro Torralba Daniel Borrajo Carlos Linares López Angel García Olaya Juan Sáenz

When dealing with transportation problems Operational Research (OR), and related areas as Artificial Intelligence (AI), have focused mostly on uni-modal transport problems. Due to the current existence of bigger international logistics companies, transportation problems are becoming increasingly more complex. One of the complexities arises from the use of intermodal transportation. Intermodal t...

Journal: :The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association 2015
Jessie X Fan Ming Wen Lori Kowaleski-Jones

PURPOSE This research investigated participation rates in 3 modes of active commuting (AC) and their sociodemographic and physical environmental correlates in rural America. METHODS The 2000 Census supplemented with other data sets were used to analyze AC rates in percentage of workers walking, biking, and taking public transportation to work in 14,209 nonmetropolitan rural tracts identified ...

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