road traffic accidents and the effects they subsequently incur are increasing dramatically, and estimating the cost of road traffic crashes could be a vital step in improving the recognition of this widespread problem. the main objective of this paper is to estimate the cost of road traffic crashes in iran using the human capital (hc) method. results of this study indicate that the cost of road...

in forest harvesting, there is an ongoing trend to increase constantly the size, power and load of logging machines. this may cause soil degradation in forest ecosystems as the passes of these machines modify important soil structural characteristics. the present study was conducted to examine impact of skidding traffic, trail slope, traffic frequency, and soil depth on bulk density and soil co...

Background: Today, the effects of environmental pollution on human life and human needs, which reduces the level of community health caused by traffic noise in large cities, are clearly visible by creating irritation and pathogenic conditions. The aim of this study was to assess the risk of noise pollution resulted from central traffic in Shiraz by analyzing its indicators and related componen...

background: sound produced by the passing traffic contributes to noise pollution. noise pollution affects the residents of both city and suburban areas. the noise produced does not only disturb the community living nearby the main road during the day but becomes worse during the night. the purpose of the study is to perform noise level measurement and subjective evaluation on the noise produced...

conclusions it is proposed that the needed research be conducted at national and regional levels in coordination and cooperation with international organizations active in the field of traffic crashes in various parts of the world, especially in asian, african and latin american developing countries, where a greater proportion of pedestrian traffic crashes occur. results a review of the studies...

objectives this study aimed to measure road traffic fatality rates and years of lost life, and also to depict a view of trends in road traffic deaths from 2004 to 2010 in yazd city, a province in central iran. materials and methods this retrospective case study analyzed road traffic deaths that were classified under the v01 - v99 codes of the icd-10 in yazd province from march 2004 to march 201...

Air Traffic Management (ATM) represents a domain of emerging and challenging applications of MINLP. A number of problems arising in ATM lead naturally to optimization problems whose efficient and reliable solution constitutes a key ingredient to ensure air traffic safety [11]. The air-traffic level currently attained in Europe is around tens of thousands of flights per day, and it is expected t...