منابع مشابه
Beyond distance: children's school travel mode choice.
BACKGROUND Long distance is a leading environmental barrier to walking to school and requires long-term, multilevel interventions. Meanwhile, childhood obesity remains highly prevalent, calling for more immediate solutions. PURPOSE The purpose of this study was to examine attitudinal and environmental correlates of walking to the elementary school, controlling for distance. METHODS Using pa...
متن کاملKnowledge Discovery from the Data of Long Distance Travel Mode Choices Based on Rough Set Theory
The purpose of this study is to find the relationships between personal demographic attributes and long distance travel mode choices based on the Artificial Intelligence technique-rough set theory. Rough set theory can learn and refine decision rules or hidden facts from the incomplete observed data without the constraints of statistical assumptions. Also the induced decision rules are expresse...
متن کاملLong distance transmission in few-mode fibers.
Using multimode fibers for long-haul transmission is proposed and demonstrated experimentally. In particular few-mode fibers (FMFs) are demonstrated as a good compromise since they are sufficiently resistant to mode coupling compared to standard multimode fibers but they still can have large core diameters compared to single-mode fibers. As a result these fibers can have significantly less nonl...
متن کاملEffects of Urban Form and Distance on Travel Mode
For over 50 years the U.S. has been shifting away hom small, neighborhood schools to larger schools in lower density areas. Rates of children walking and biking to school have declined significantly over this period. This study examines the relationship between urban form, distance, and middle school students walking and biking to and from four schools in Oregon. Five primary results emerge: (1...
متن کاملLong-distance migrating species of birds travel in larger groups.
How individuals migrate over long distances is an enduring mystery of animal migration. Strong selection pressure for travelling in groups has been suggested in long-distance migrating species. Travelling in groups can reduce the energetic demands of long migration, increase navigational accuracy and favour group foraging at migratory halts. Nevertheless, this hypothesis has received scant atte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Transport and Land Use
سال: 2015
ISSN: 1938-7849
DOI: 10.5198/jtlu.2015.576