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Cyclists perception in road traffic
Janošíková, Denisa ; Belák, Michal (referee) ; Bucsuházy, Kateřina (advisor)
This thesis deals with cyclist behavior in real road traffic — the thesis aimed specifically at visual perception of the situation behind the cyclist before turning and lane changing. The cyclist's behavior before turning and lane changing is analyzed concerning visual perception, the time of head-turning, and signaling the direction change. The distance from the intersection, where these actions began, was also evaluated. The measurement was conducted in real rod traffic in the Valašské Klobouky town. The average times necessary for visual inspection of the situation behind the cyclist ranged from 0.97 seconds to 1.50 seconds. The average values of the distance from the intersection, where signaling of the direction change began, ranged from 41 m to 51 m. Results can be used in the field of accident analysis or education.
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Women behavior in road traffic
Gajdůšková, Vendula ; Belák, Michal (referee) ; Bucsuházy, Kateřina (advisor)
This thesis is focused on women's behavior in road traffic, specifically the visual perception of the situation behind the vehicle before initiating, during, and after completing the selected driving maneuvers. Based on the analysis of the current state, experimental measurements were proposed to be conducted in real traffic conditions in Zlín and its surrounding area. The visual perception during the analysis of the situation behind the vehicle, eye movement strategies, and their durations were analyzed. The average fixation durations ranged from 0.28 seconds to 0.47 seconds. The results showed that the longest fixation durations were recorded when stopping before an intersection and the shortest when turning right. The study also revealed differences in eye movement strategies and behavior between men and women. It was shown that women focus more on the situation in front of the vehicle than on the situation behind it. The results of this work can be utilized in the analysis of road crashes and contribute to the improvement of driving school training.
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Determination of duration that driver needs to assess the situation behind the vehicle in course of turning or overtaking manoeuvres.
Belák, Michal ; Rábek,, Vlastimil (referee) ; Kolíbal, Zdeněk (referee) ; Semela, Marek (advisor)
The dissertation thesis deals mainly with determining of the duration that driver needs to assess the situation behind his vehicle at manoeuvers of turning and overtaking, based on the measurements made in real road traffic. These are common and frequent driving manoeuvers, which the driver performs while driving the vehicle in regular road traffic. For their safe execution the driver needs to have sufficient amount of information about the situation around the vehicle and especially behind the vehicle. This information can driver usually gain from devices for indirect vision, most often rear view mirrors. The time thus defined, suitable e.g for the needs of forensic engineering applications for the analysis of road accidents, has not been studied in detail yet. For the purpose of its determination, therefore, an extensive analysis of the current state of problematics related to the indirect vision from the vehicle was carried out. There were formulated influences on the time duration and with this related characteristics of humans as a part of the driver-vehicle-environment system in the thesis. The characteristics of human perception were investigated and the problematics of reaction time was discussed. Existing research focused on the duration of rear view mirrors glances was analyzed and possible methods of its measurement in detail were presented by author. Based on this, an experiment was designed and realized, the time necessary for rear view mirror glances was defined by the author. The results enable to quantify the time that the driver needs for assessing the situation behind the vehicle in connection of turning, overtaking and other driving manoeuvers when the driver needs to change the driving direction. The conclusions showed that the time needed to evaluate the situation behind the vehicle by means of the rear-view mirrors does not normally exceed duration 1 second.
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Determination of duration that driver needs to assess the situation behind the vehicle in course of turning or overtaking manoeuvres.
Belák, Michal ; Rábek,, Vlastimil (referee) ; Kolíbal, Zdeněk (referee) ; Semela, Marek (advisor)
The dissertation thesis deals mainly with determining of the duration that driver needs to assess the situation behind his vehicle at manoeuvers of turning and overtaking, based on the measurements made in real road traffic. These are common and frequent driving manoeuvers, which the driver performs while driving the vehicle in regular road traffic. For their safe execution the driver needs to have sufficient amount of information about the situation around the vehicle and especially behind the vehicle. This information can driver usually gain from devices for indirect vision, most often rear view mirrors. The time thus defined, suitable e.g for the needs of forensic engineering applications for the analysis of road accidents, has not been studied in detail yet. For the purpose of its determination, therefore, an extensive analysis of the current state of problematics related to the indirect vision from the vehicle was carried out. There were formulated influences on the time duration and with this related characteristics of humans as a part of the driver-vehicle-environment system in the thesis. The characteristics of human perception were investigated and the problematics of reaction time was discussed. Existing research focused on the duration of rear view mirrors glances was analyzed and possible methods of its measurement in detail were presented by author. Based on this, an experiment was designed and realized, the time necessary for rear view mirror glances was defined by the author. The results enable to quantify the time that the driver needs for assessing the situation behind the vehicle in connection of turning, overtaking and other driving manoeuvers when the driver needs to change the driving direction. The conclusions showed that the time needed to evaluate the situation behind the vehicle by means of the rear-view mirrors does not normally exceed duration 1 second.
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