On Polish roads the problem of mortality of forest animals is more and more often noticeable. As a result of continuous development and modernization of roads in our country accompanying investments should be held, which aim is to minimize the amount of road incidents with participation of forest animals. The main cause of animals' mortality on roads is i.a. intersecting their migration cor-ridors by the road infrastructure.The aim of this article is to analyze the structure of road incidents with par-ticipation of forest animals.According to data collected concerning 2010 the Police reported 16 963 road incidents with participation of forest animals, including 157 accidents, 16 806 collisions, 6 persons killed and 208 injured. These are the losses seen from the environmental and the economic point of view. As results from the analysis carried out, national and voivodship roads, on which the great part of national and local vehicular traffic takes place, pose the greatest danger to forest animals. The least road incidents with participation of forest animals occur on motorways, which are in most cases fenced. The largest amount of road incidents with participation of forest animals occurred on Fridays, Saturdays and Sundays. It results from the increased vehicu-lar traffic ...
Development of road infrastructure and growing number of vehicles on the roads increase the probability of road collisions with wild animals (fallow deer, stag, moose, roe deer or wild boar). In order to improve the safety and decrease the number of wildlife vehicle collisions, it is justifiable to determine the time intervals in which the probability of road accidents involving animals occurs, including seasonal, monthly and daily changes over the whole year. The research comprised an analysis of the structure of road collisions involving wild animals in the years 2001-2011, including the division into seasons, monthly and daily intervals. The data of the number of road traffic collisions involving animals were obtained through an analysis of the data base of Police Headquarters in Warsaw. The identified structure of seasonal and daily road collisions involving animals revealed that the highest number of accidents happened in autumn (29.36%) and spring (26.60%). Almost 10.88% of the analysed accidents happened in October and c.a. 10.62% in May. In the daily structure, the highest probability of collision was after the sunset. These changes are related to daily and seasonal migration due to animal behaviour and the traffic density. ...
