نتایج جستجو برای: two way rural roads

تعداد نتایج: 2873644  

2016
Qun Chen Yunan Zhao Shuangli Pan Yan Wang Tieqiao Tang

Branch roads, which are densely distributed in cities, allow for the flow of local traffic and provide connections between the city and outlying areas. Branch roads are typically narrow, and two-way traffic flows on branch roads are thus affected when vehicles traveling in opposite directions meet. This study investigates the changes in the velocities of vehicles when they meet on two-way branc...

Journal: :iranian rehabilitation journal 0
mostafa pouya kian department of occupational health, school of medicine, tarbiat modares university, tehran, iran. hassan asilian mahabadi department of occupational health, school of medicine, tarbiat modares university, tehran, iran. seyedeh monavar yazdi department of psychology, faculty of education and psychology, alzahra university, tehran, iran. ebrahim hajizadeh department of biostatistics, faculty of mathematical sciences, tarbiat modares university, tehran, iran. ali nahvi department of mechatronics, faculty of electrical engineering, k.n. toosi university of technology, tehran, iran.

objectives: most studies have performed to identify the affective variables in using mobile phone by drivers based on interview and questionnaire. in this study call answering rate while driving was investigated in a sample of male postgraduate students of a university in tehran by a driving simulator. methods: six driving scenario designed differing in risk of driving. answer rate to mobile ph...

2008
Kimberly M. Andrews

Roads are the ultimate manifestation of urbanization, providing essential connectivity within and between rural and heavily populated areas. Roads permeate national forests and other established wilderness areas; consequently, no areas in the U.S. are protected from this expanding infrastructure. The ecological impacts roads have on herpetofauna across temporal and spatial scales are profound, ...

2013
Ahmed M. Semeida

The paper presents an analysis of roadway factors and posted speed limits that affect the operating speed at multi-lane highways in Egypt. Field data on multi-lane highways in Egypt are used in this investigation. The analysis considers two categories of highways. The first consists of two desert roads (Cairo-Alexandria and Cairo-Ismailia desert roads) and the second consists of two agricultura...

Journal: :American Economic Review 2020

Journal: :Journal of the Royal Sanitary Institute 1906

1997
Ivan Laptev

The extraction of roads from aerial and satellite images is an important task within cartography and planning of new road networks. The automation of this task is highly motivated by the expected increase of the speed and the precision of extraction. This work considers automatic road extraction from single aerial images of high resolution. It is based on two previously developed approaches: Th...

2016
Ettore Bidoli Marilena Pappagallo Silvia Birri Luisa Frova Loris Zanier Diego Serraino

BACKGROUND Air pollution from road traffic has been associated to an increased risk of lung cancer. Herein, we investigated the association between lung cancer mortality and residence near Italian highways or national major roads. METHODS Information on deaths for lung cancer registered from 1990 to 2010 and stratified by age, gender, and urban or rural municipality of residence at death were...

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