نتایج جستجو برای: active transportation

تعداد نتایج: 494815  

Journal: :International Journal of Environmental Research and Public Health 2017

2008
Chen-Fu Liao Henry X. Liu David Levinson

The practice of transportation engineering and planning has evolved substantially over the past several decades. A new paradigm for transportation engineering education is required to better engage students and deliver knowledge. Simulation tools have been used by transportation professionals to evaluate and analyze the potential impact of design or control strategy changes. Conveying complex t...

Journal: :international journal of industrial engineering and productional research- 0
zohreh zahedian kargar street, above the jalale-ale-ahmad mohammad mahdi nasiri

in this paper, we develop a freight transportation model for railway network considering hazmat transportation issue. in the transportation system considered, different customers can request for carrying hazmat and non- hazmat boxes. it is assumed that the sequence of the trains in the network is known. the objective is assigning the non-hazmat boxes and hazmat boxes to wagons of the trains so ...

Journal: :Journal of physical activity & health 2009
Kristin Hendricks Risa Wilkerson Christine Vogt Scott TenBrink

BACKGROUND Jackson, Michigan (population 36,000) started active living interventions to help solve residents' low physical activity levels. Jackson's experience can serve as a case study for beginning similar efforts in smaller communities. METHODS In 2003, Jackson began a 3-prong community intervention utilizing the 5P model to increase safe physical activity opportunities and encourage walk...

2005
William P. Mahoney Richard A. Wagoner

A significant increase in the awareness of the need for improved surface transportation weather services has occurred over the last five years. During this time, a coordinated national effort has been undertaken to highlight the unmet weather needs of the transportation community and identify research requirements and implementation strategies for improved weather services. The benefits of such...

2016
Maia P. Smith Dietrich Berdel Dennis Nowak Joachim Heinrich Holger Schulz

BACKGROUND Physical activity (PA) is a well-known and underused protective factor for numerous health outcomes, and interventions are hampered by lack of objective data. We combined accelerometers with diaries to estimate the contributions to total activity from different domains throughout the day and week in adolescents. METHODS Accelerometric and diary data from 1403 adolescents (45% male,...

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