The basis for a high-quality analysis of a traffic accident lies in the detailed investigation documentation, which includes precisely defined fixed positions of the vehicle and associated tracks. However, we often face the problem when the participants after the accident move the vehicles from the scene of the event for the smooth flow of traffic, before the competent authorities carry out an investigation or the European accident report is filled out. An additional difficulty arises when there are no visible traces left on the road that could be linked to the place and manner of the accident, which makes it difficult for experts to provide expertise. In such situations, experts must apply non-standard accident analysis methods. Therefore, the goal of this paper is to present, through a practical example of the technical analysis of a real traffic accident, one of the approaches to traffic accident expertise that is characterized by the described problem. The subject of the work are traffic accidents caused by overtaking and left turning, as one of the most common situations in which vehicle collisions occur. The example shows the method of determining the location of a vehicle collision in a transverse sense, the creation of a time-space analysis, and the possibility of avoiding an accident in which the drivers moved the vehicles from the accident site, and no visible traces were left on the roadway.
In this work, the characteristics of the traffic flow on the section of the Gradiška- Banja Luka highway, which is part of the European road route E-661, were analyzed in the period from 2019 to 2022. Data on the size of flow requests were taken from the database of the toll station “Jakupovci” on the Gradiška- Banja Luka highway. When defining the size of the flow request, the structure of the traffic flow was also taken into account, in accordance with the categories according to which the toll is collected. The period in which the analysis of flow characteristics was performed also includes the period in which the coronavirus pandemic reigned, when certain travel rules and prohibitions were in force. In accordance with that, the work will specifically analyze the impact of the COVID 19 pandemic on the characteristics of the traffic flow on the Gradiška- Banja Luka highway section. Given that the
„Jakupovci“ toll station is the busiest toll station on the Gradiška- Banja Luka highway, the results of the analysis can be applied to other sections of highways in the Republic of Srpska.
The basis for a high-quality analysis of a traffic accident lies in the detailed investigation documentation, which includes precisely defined fixed positions of the vehicle and associated tracks. However, we often face the problem when the participants after the accident move the vehicles from the scene of the event for the smooth flow of traffic, before the competent authorities carry out an investigation or the European accident report is filled out. An additional difficulty arises when there are no visible traces left on the road that could be linked to the place and manner of the accident, which makes it difficult for experts to provide expertise. In such situations, experts must apply non-standard accident analysis methods. Therefore, the goal of this paper is to present, through a practical example of the technical analysis of a real traffic accident, one of the approaches to traffic accident expertise that is characterized by the described problem. The subject of the work are traffic accidents caused by overtaking and left turning, as one of the most common situations in which vehicle collisions occur. The example shows the method of determining the location of a vehicle collision in a transverse sense, the creation of a time-space analysis, and the possibility of avoiding an accident in which the drivers moved the vehicles from the accident site, and no visible traces were left on the roadway.
