نتایج جستجو برای: accident severity index

تعداد نتایج: 648915  

Journal: :Accident; analysis and prevention 2002
Ali S Al-Ghamdi

Logistic regression was applied to accident-related data collected from traffic police records in order to examine the contribution of several variables to accident severity. A total of 560 subjects involved in serious accidents were sampled. Accident severity (the dependent variable) in this study is a dichotomous variable with two categories, fatal and non-fatal. Therefore, each of the subjec...

2015
K. Geetha C. Vaishnavi

Traffic Accidents are occurring due to development of automobile industry and the accidents are unavoidable even the traffic rules are very strictly maintained. Data mining algorithm is applied to model the traffic accident injury level by using traffic accident dataset. It helped by obtaining the characteristics of drivers behavior, road condition and weather condition, Accident severity that ...

Journal: :desert 2012
maryam azarakhshi mohammad mahdavi hosein arzani hasan ahmadi

drought is a normal, recurring feature of climate phenomena; it may occur virtually in all climatic regions. the effects of drought accumulate slowly and its impacts are spread over a larger geographical area than other natural hazards. drought is a natural hazard originating from a deficiency of precipitation that result in a water shortage for some activities or some groups and is often assoc...

2013
Ali Haghani Yue Liu Cinzia Cirillo

Title: WEATHER IMPACT ON ROAD ACCIDENT SEVERITY IN MARYLAND YUE LIU, M.S. in Civil and Environmental Engineering, 2013 Directed By: Professor and Chair Ali Haghani, Department of Civil and Environmental Engineering This study was conducted to analyze and quantify the impact of weather factors on road accident severity, based on Maryland accident data during 2007-2010. In order to find a better ...

Journal: :جغرافیا و توسعه ناحیه ای 0

drought is a climatological hazard and is a part of the climate of a region. this climatological phenomenon has some properties that distinguish it from other natural disasters. drought is a gradual phenomenon and when the amount of moisture and precipitation become less than normal value in a certain period, its damages are non- structural in this condition and it is said that drought has occu...

Journal: :Accident; analysis and prevention 1995
R Elvik

Evidence from 32 studies that have evaluated the safety effects of median barriers, guardrails along the edge of the road, and crash cushions (impact attenuators) is summarized by means of a meta-analysis. Two hundred and thirty-two (232) estimates of safety effects are included in the meta-analysis. The presence of publication bias is tested by means of the funnel graph method. For most subset...

In this work, the time series modeling was used to predict the Tazareh coal mine risks. For this purpose, initially, a monthly analysis of the risk constituents including frequency index and incidence severity index was performed. Next, a monthly time series diagram related to each one of these indices was for a nine year period of time from 2005 to 2013. After extrusion of the trend, seasonali...

Journal: :Accident; analysis and prevention 2012
Panagiotis Ch Anastasopoulos Venky N Shankar John E Haddock Fred L Mannering

Relatively recent research has illustrated the potential that tobit regression has in studying factors that affect vehicle accident rates (accidents per distance traveled) on specific roadway segments. Tobit regression has been used because accident rates on specific roadway segments are continuous data that are left-censored at zero (they are censored because accidents may not be observed on a...

Journal: :archives of trauma research 0
stephan brand trauma department, hannover medical school (mhh), hannover, germany; trauma department, hannover medical school (mhh), hannover, germany. tel: +49-5115322026, fax: +49-5115325877 ingo breitenbach department of cardiothoracic and vascular surgery, public hospital braunschweig, braunschweig, germany philipp bolzen department of diagnostic radiology, hannover medical school, hannover, germany maximilian petri trauma department, hannover medical school (mhh), hannover, germany christian krettek trauma department, hannover medical school (mhh), hannover, germany omke teebken division of vascular surgery, department of cardiothoracic, transplantation and vascular surgery, hannover medical school, hannover, germany

conclusions due to more sophisticated diagnostic tools and surgical approaches, mortality and morbidity of blunt aortic injuries were significantly reduced over the years compared to thoracic endovascular aortic repair and or over two different time periods. objectives the aim of the present study was to retrospectively evaluate the mortality and morbidity with either treatment option. therefor...

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