sleep deprivation (sd) increases the risk of human-error related accidents and a major cause of motor vehicle accidents. the overall prevalence of insufficient sleep in adults has been estimated at 20%. according to a comprehensive study prevalence of daytime sleepiness, among young adults (age 21 to 30 years), the average nocturnal sleep time during weekdays was 6.7 hours and on weekends was 7...

injuries suffered in vehicle traffic crashes are the leading cause of death among children in many countries. prevention of injuries of children in raod accidents is still a challenge. the present lecture discuss the commonly injuried body regions in children involved in motor and non-motor vehicle traffic crashes. head, ribs and lung are commonly injured body regions among children under 8 yea...

human factors issues associated with roadway design and operations are critical components of improving highway safety. first, the three major components of highway safety are driver behavior, vehicle safety, and roadway safety. the general philosophy in roadside safety follows the priorities of (1) remove the hazard, (2) relocate the hazard, (3) make the hazard forgiving, and (4) shield the ha...

large urban areas are facing growing problems of noise pollutions. geospatial information systems (gis) can conveniently be adapted to gather, analyze and present noise information. gis can also be extended to answer to user specific problems through deterministic and statistics models. the objectives of this research were to measure urban traffic noise levels, analyze temporal and spatial dyna...

background: to reduce traffic injuries in the country, health professionals should have accurate estimates of road traffic deaths. multiple and sometimes inconsistent statistics presented by organizations in charge create high degree of uncertainty for planners and decision makers. to achieve an accurate estimate, several methods are available. of them, capture-recapture method seems to be an a...

Road traffic casualties ( RTC) present a major health problem in Iran with a significant number of death and injuries among drivers, passengers and pedestrians of all ages. The purpose of this study was to achieve an understanding and knowledge about the pattern of the accident,s casualties in the city of Kerman. During one year period ( 1994-1995) all in- patient and out- patient cases referre...

Accidents allocate more than 30 percent causes of mortality and are the most common reason of mortality in children after one year old. Thus, in order to provide children health, education of road safety is essential and children should be more aware about road safety necessities and learn  the methods of life maintenance proportionate with own age and needs. There is a significant note th...