نتایج جستجو برای: the roads

تعداد نتایج: 16054421  

Journal: :East African journal of engineering 2023

Road maintenance is an integral component of the low-volume sealed roads provision process, type and cost which are influenced significantly by decisions made during preceding planning, design, construction phases. Low-volume particularly sensitive to whims physical environment so timely effective control their deterioration becomes key challenge management road maintenance. In Kenya, Kenya Roa...

Journal: :American journal of public health 2003
Matt Egan Mark Petticrew David Ogilvie Val Hamilton

We sought to synthesize evidence of the health effects of construction of new roads by systematically reviewing observational studies of such effects. We included and critically appraised 32 studies. The review suggested that out-of-town bypasses decrease injuries on main roads through or around towns, although more robust evidence is needed on effects on secondary roads. New major urban roads ...

2006
William L. Gaines Kenneth J. Raedeke

We used logistic regression to derive scaled resource selection functions (RSFs) for female black bears at two study areas in the North Cascades Mountains. We tested the hypothesis that the influence of roads would result in potential habitat effectiveness (RSFs without the influence of roads) being greater than realized habitat effectiveness (RSFs with roads). Roads consistently had a negative...

Journal: :جغرافیا و توسعه فضای شهری 0
دکتر حسن حکمت نبا ژینوس انصاری

transportation as a prerequisite and basics of stable development has a key role and great efficiency in seeding facilities and intellect. it has also a significant role as an effective index in growth and development to the extent that the number of accidents in our country are increasing which carries with them a lot of financial, psychological and social losses, for this reason, it seems to ...

Journal: :Transfers 2015

Journal: :Nature 1958

Journal: :Nature 1886

Journal: :Family Medicine 2018

Road safety index is an important indicator that has been recently introduced as a useful tool to measure the quality of life in many countries and cities. Road safety index is a complex index and it has at least three main components, including road user behavior, vehicle safety, and road infrastructure effects. Many researchers have selected studying road performance from road safety index pe...

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