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Affiliation
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University of Belgrade, Faculty of Transport and Traffic Engineering , 305 Vojvode Stepe Street, Belgrade , Serbia , n.markovic@sf.bg.ac.rs , d.pesic@sf.bg.ac.rs , m.vujanic@sf.bg.ac.rs. |
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Abstract
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OBJECTIVE: Powered two wheelers (PTWs) are one of the most vulnerable categories of road users. Bearing that fact in mind, we have researched the effects of individual and environmental factors on the severity and type of injuries of PTW users. The aim was to recognize the circumstances which cause these accidents and take some preventive actions that would improve the level of road safety for PTWs.
METHODS: In the period from 2001 to 2010, the expertise of 139 road accidents involving PTWs was made by the Faculty of Transport and Traffic Engineering in Belgrade. Тhe effects of both individual (age, gender, etc.) and environmental factors (place of an accident, time of day, etc.) on the cause of accidents, and severity and type of injuries of PTWs, have been researched in this paper. The analyses of these effects were conducted using the Logistic regression, Chi-square test and Pearson correlation.
RESULTS: Factors such as categories of road users, pavement conditions, place of accident, age, time of day have a statistically significant effect on PTW injuries, whereas other factors (gender, road alignment) do not. The paper also defines the interdependence of occurrence of particular injuries at certain speeds. The results show that if PTW users died of a head injury, this also understood that there were chest injuries, clefts of internal organs and limb injuries.
CONCLUSIONS: It has been shown that there is a high degree of influence of individual factors on the occurrence of accidents involving two-wheelers (PTWs/bicycles), but with no statistically significant relation. Establishing the existence of such conditionalities enable identifying and defining of factors that have an impact on the occurrence of traffic accidents involving bicyclists or PTWs. Such a link between individual factors and the occurrence of accidents makes possible for system managers to take appropriate actions aimed at certain categories of two-wheelers in order to reduce their casualties in a particular area. The analysis that has been conducted found out that most of the road factors do not have a statistically significant effect on both categories of two-wheelers. Namely, the logistic regression analysis has shown that there is a statistically significant effect of the place of accident on the occurrence of accidents involving bicyclists.
Language: en |