منابع مشابه
Some traffic features at freeway bottlenecks
Observations from two freeway bottlenecks in and near Toronto, Canada indicate that the average rate vehicles discharge from a queue can be 10% lower than the flow measured prior to the queue’s formation. Absent any influences from downstream, the queue discharge flows exhibited nearly stationary patterns that alternated between higher and lower rates. These alternating flow patterns were espec...
متن کاملO23: Traffic Accidents in Children
Accident is one of the dangers that threated the child’s life. 85 percent of mortality in children in the world is related to accidents. Lack of use seatbelt for children in raer seats is one of the major reasons of children mortality. Unfortunately, in 70-75% cases, damage in children occurs in their face and head. Also, the physical damage can lead to maim and death in children. On the ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1969
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.4.5686.799