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Analysis of Internal Vehicle Noise and its Influence on Active Safety
Dolejský, Lukáš ; Bradáč, Albert (referee) ; Panáček, Vladimír (advisor)
Thesis is focused on the impact of the inside noise of the car on conditional driver safety, which is presented by reaction times on simulated stimulus. In introduction, there is a theoretical definition of the security of the vehicles, inside noise, and its methods of measurement. Practical part consists of description and realization of the measurements of the impact on the inside noise in the car on reaction time of drivers. Conclusion includes evaluations of the measurements and findings, which results from them.
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The impact analysis of the technical devices used by the driver on the reaction time
Kubánek, Ondřej ; Bradáč, Albert (referee) ; Panáček, Vladimír (advisor)
This master‘s thesis analyzes the impact of the use of technical equipment for the driver reaction time. There are described the legal requirements for the use of technical devices by the driver in the vehicle. There are analyzed the types of technical devices used by drivers and mainly discussed the issue of drivers' reaction times. They assessed factors affecting reaction time, ways of measuring the reaction time and the type of reaction times. They discussed earlier research from the beginning of the measurement of reaction times to the latest research, dealing with the measurement of reaction times when using a mobile phone. The practical part is devoted to perform road tests on a sample of drivers and evaluate their reaction times during normal driving and during a call. The measured and evaluated data are commented with respect to the benefits of expert activities in the field of transport.
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Therapeutic game for reaction time measurement using the BITalino platform
Veselá, Cindy ; Mézl, Martin (referee) ; Hesko, Branislav (advisor)
This master’s thesis focuses on real-time detection of activity in electromyographic signal for reaction time measurement. For patients motivation there was designed and implemented therapeutic car game controlled throught the muscle activity. In this thesis were used three different algorithms for muscles activity detection in EMG signal. The best accuracy of this three methods has designed artificial network with U-Net hierarchy, which is used to segment samples into two categories - samples of signal with activity and samples representing calm. Accuracy of this method is 97 %. Later there were examined differences between groups of probands, different stimulus and the changes of reaction time over time.
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Analysis of driver reaction to sudden stimulus
Brezová, Gabriela ; Motl, Jakub (referee) ; Mikulec, Roman (advisor)
The diploma thesis deal with what ways drivers react to an unexpected stimulus. In the theoretical part, the analysis of the current state, reaction time, methods of reaction of the driver, stimuli from the environment and finally is being analyzed, the vehicle and its assistance systems. The analytical part of the diploma thesis was performed by driving tests, where it was found that the way the driver reacts from the distance to which they are obstructed and the speed of the vehicle. For that reason, a TTC dependency analysis was performed. It was found that drivers at low TTC values chose an obstacle in which they brake the need to move their foot from the accelerator pedal to the brake pedal and they have to brake sharply. At medium TTC values, drivers brake most often. In the case of a combination of conductors, they chose braking with avoiding at lower TTC values and avoiding with braking at medium TTC values. There was also a dependence of the method of reaction on driving experience. Inexperienced drivers rather choose braking, experienced drivers use combinations.
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Analysis of driver’s conduct during solving of situations associated with pedestrians crossing the road
Maxera, Pavel ; Kolíbal, Zdeněk (referee) ; Rábek, Vlastimil (referee) ; Kledus, Robert (advisor)
The doctoral thesis analyses driver’s conduct while solving situations associated with crossing of pedestrians across the road in cases of various design of pedestrian crossings and at different conditions. The thesis deepens the knowledge of the human factor impact on the occurrence of a traffic accident involved vehicle and pedestrian and thesis also complements knowledge for the needs of the analysis of traffic accidents, especially in solving the pre collision phase and at assessment of possibilities for collision prevention by involved participants. The thesis deals with driver’s conduct, various models of the conduct as well as the thesis focuses on the visual perception, the process of information processing, the driver’s conduct and the reaction time. In terms of the solution suitable types of experiments were designed and implemented. Based on performed measurements a method of processing and evaluating data on drivers’ conduct was found as well as more significant data set was obtained for a detailed analysis of drivers' conduct in different driving situations. The assessed quantities of drivers' conduct were analysed with respect to the dangerousness of driving situations. For these purposes, the categories of the dangerousness of driving situations were defined (situations completely safe, with increased danger, dangerous and critical), into which the analysed driving situations were subsequently included. To enable the quantification of this classification of situations into the categories of the dangerousness, the coefficient of the dangerousness (so called K) was defined. From the detailed analysis of the obtained data, the limit values of this coefficient were determined, and these were subsequently verified using data from the solution of real traffic accidents. Concurrently the analysis verified the suitability of using this hazard coefficient in the analysis of traffic accidents, especially for a detailed assessment of the possibilities of collision prevention.
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Characteristics of Old-Age Drivers in Terms of Road Traffic Safety
Lukesová, Dominika ; Drahotský, Ivo (referee) ; Schmeidler, Karel (advisor)
The aim of this work is to evaluate current procedures and to refine assessment of impact connected to the drivers' age and traffic accidents. The theoretical part describes senior drivers, traffic accident rate of seniors and decreased ability to drive influenced by age. The practical part is case report of traffic accidents caused by senior drivers, measuring reaction time and the evaluation of these measurements. I have developed some proposals for seniors to prevent the risk of the occurrence of traffic accidents.
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Checking of the Situation Behind the Vehicle
Perničková, Tereza ; Bucsuházy, Kateřina (referee) ; Belák, Michal (advisor)
This diploma thesis deals with the control of the situation behind the vehicle. The theoretical part of the thesis summarizes the knowledge about the transport system, the reaction time and the individual phases, including the factors influencing the reaction time and the possible methods of its measurement. Further, there are issues of vision from the vehicle and the rules of safe driving. Explanation is the eyetracking method, the types of these devices, and the methods of visualizing the data obtained from the records. In the analytical part are drawn from data recorded video. There are testing route, testing device, testing vehicle and information about testing drivers. The frequency and length of the individual components of the mirror views were evaluated depending on the selected mirror even without dependence from the data obtained.
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Elderly driver as a traffic risc personality
Sedlák, Emil ; Matuchová, Eva (referee) ; Schmeidler, Karel (advisor)
The goal of this thesis is to determine the current risk factors for individuals who are 65 years or older and using public transportation. The theoretical portion contains comments from literary sources which deal with transportation phychology with a focus on lower the cognitive abilities and psycho-motor skills and their effect as Well as the assistance features of cars. The analytical portion describes the future development of an aging population, ratings of statistics showing the accident proneness of senior citizens, examples of accidents, and casuistry from transport psychologist workplace. An analysis of the results from measuring reaction time of seniors and to compare it with younger generations. The final portion is dedicated to solutions that may be able to contribute to lower the number of accidents involving seniors of public transportation grounds.
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