The article presents an interesting result of research aimed on traffic safety of roundabouts. The relationship between the inscribed circle diameter of roundabout and the crash rate in the roundabout is presented. There is a certain optimal size of roundabout inscribed circle diameter identified for safe operation.
The article deals with a brief description of methodology for monitoring and evaluation road users behavior with usage of video – so-called video analysis of conflict situations, which is used for evaluation of road traffic quality in Czech Republic. There are also presented results of analysis of conflict situations at concrete T-intersection with cranked priority.
The article deals with an issue of uncontrolled cross intersections with cranked priority. There is introduced the procedure of capacity analysis of classical intersection with normal priority according to the standards used in Czech Republic. It also described the proposal of capacity analysis of cross intersection with cranked priority.
The article deals with a description of methodology of video analysis of conflict situations, which is used for monitoring and evaluation of road users’ behaviour with usage of video. This methodology is taking e.g. for safety inspections on roads in Czech Republic. In this article, there are also presented results of analysis of conflict situations at concrete cross intersection with cranked priority.
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