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Analysis of the Speed of Cyclists Aged from 10 to 15 Years
Valentová, Hana ; Semela, Marek (referee) ; Bradáč, Albert (advisor)
The thesis is concerned with an analysis of speed of bicyclists in age between 10 and 15 years. The thesis examines differences in construction of children's bikes, describes relationship between a child and a bicycle, messures size of children's bikes and characterizes the procedure during an analysis of bike accidents. Internal parts of the thesis are statistical data from accident frequency and summarizing of actual state of understanding of following problems in this age category. The main purpose of this thesis is to make an analysis of speed for individual age categories and make an evaluation of results. This measurement will be completed by a measure of achievable brake deceleration of riders in age between 10 and 15 years. The purpose of this final thesis is an expansion of data for a forensic expertise in area of Traffic.
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The Measurement of Car Deceleration During Engine Braking
Bejčková, Jana ; Sedlák, Jaroslav (referee) ; Bradáč, Albert (advisor)
The presented diploma thesis deals with the measurement of car deceleration during engine braking from different starting speeds and different speed gears with a sample of vehicles. This piece of work consists of a theoretical part, where problem background is defined, selected driving parameters including the manner how to measure them are explained and the facts in the field of structural characteristics of the vehicle are given, further from a design of measurement methodology that gives an overall plan of implementation, all the respective information and a description of handling with decelerometer, further from a real measurement of the deceleration including an interpretation of partial obtained values and finally from the evaluation of all results with appropriate conclusions.
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Analysis of the Speed of Cyclists Aged from 4 to 10 Years
Skanderová, Valentýna ; Semela, Marek (referee) ; Bradáč, Albert (advisor)
The diploma thesis Cyclists speed analysis at the age bracket of 4 to 10 deals with history and origin of bicycle, description and types of the contruction of bicycles for children at the age bracket mentioned above. The thesis includes the statistics of accidents involving cyclists and regulations providing for the ride on a bicycle on a carriageway. The practical part includes measuring cyclists speed when passing a measured section and the analysis of these data. The analysis of data is processed in terms of gear systems as the equipment. Complementary measuring was made in a slight rising. In the second part of the practical part is measured braking of cyclists at a particular age bracket and the evaluation of their deceleration. The conclusion includes comparison with measuring of other authors made so far.
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Methodology for designing the dead end tracks
Guziur, Petr ; Týfa,, Lukáš (referee) ; Kohout,, Martin (referee) ; Svoboda, Richard (advisor)
This work aim is designing of dead-end tracks with focus mainly on the friction buffer stop design. There are numerous factors in decision-making process of ending the dead-end track, such as position of the track in station, level of train control system, area capabilities, number and types of trains that regularly run on the track, etc. The recherche part of this work shows that friction buffer stop is the most suitable construction and preferred type of ending the dead-end track abroad. This is the reason for paying attention to that type of buffer stop with emphasis on the process of design itself. This work includes design of a program using a spreadsheet editor and Visual basic to make the design of friction buffer stop easier. There are described selected factors with highest impact on the design.
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Measuring the Manoeuvres of Public Transport Vehicles to Determine a Comfortable and Safe Ride
Hlavová, Vendula ; Petrás, Jan (referee) ; Tokař, Stanislav (advisor)
The comfort perceived by passengers during transport in public transport plays a vital role, and its improvement can lead to attracting more customers. For this reason, there is a constant effort to improve the comfort of the passenger. This thesis deals with the objective measurement of the maneuvers of MHD in Brno (tram, trolleybus, bus) with the XL Meter and together with the subjective evaluation of the standing and sitting figurant, determines the limit values of longitudinal and transverse acceleration for comfortable ride and dangerous ride, which can lead to accidents to passengers.
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Analysis of Selected Manoeuvres of Bicyclists
Špačková, Kateřina ; Belák, Michal (referee) ; Semela, Marek (advisor)
This diploma thesis Analysis of selected manoeuvres of bicyclists deals with the history and development of the bicycles, further their division of, construction, analysis accident and national legislation in the theoretical part. The practical part of the master thesis is devoted to the measurements of the bicycles. Specifically, it is about acceleration, deceleration, transverse movement, ride in the curve and looking back before changing the direction. For measuring are selected different type of bikes with different construction. The results of individual measurements are evaluated in the end of the diploma thesis.
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Analysis of the influence of misuse and tire inflation on the stability of the vehicle in a limit situation
Porč, Karel ; Panáček, Vladimír (referee) ; Vémola, Aleš (advisor)
This diploma thesis focuses on incorrect inflation and incorrect use of tires in extreme situations. In the first part, a search of previously created works is reported. This is followed by the elaboration of the basic theory, which describes the driving dynamics of the vehicle, braking and construction, marking, wear and inflation of tires. The next part is the measurement and evaluation of the effect of incorrect inflation and use of tires. Braking deceleration and evasive maneuvers were performed as tests. The third part is an evaluation and summary of the situation.
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Analysis of Deceleration of Trolleybuses and Evaluation of its Impact on Standing Passengers
Semmler, Petr ; Škrabal, Jaroslav (referee) ; Vémola, Aleš (advisor)
This thesis is focused on analysis and evaluation of the trolley deceleration effect on his standing passengers. The first part focuses on theoretical knowledge in terms of legislative requirements for the operation of trolleybuses and transport standing passengers. This section also lists physical findings during deceleration and forces acting on the vehicle. The central part is divided into two measurements. The first measure is aimed at obtaining data (deceleration) and information (number of passengers, increased stability, and fall) of the normal operation of the standing passengers in interior trolley. The second measurement will be focused on driving performance demonstration tests with the interior trolley helpers in various traffic situations. The conclusion of this thesis will summarize the values and knowledge of both measurements. The evaluated data set will limit the slowdown in the trolley passengers where standing still maintains stability.
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Analysis of Deceleration of Trams and Evaluation of its Impact on Standing Passengers
Skupová, Dagmar ; Fleissig,, Petr (referee) ; Vémola, Aleš (advisor)
The thesis is concerned with establishing the braking retardation and determining of it's influence for standing passengers. The thesis consists of three parts. The first part is theoretical and it is engaged in brake system of tramway. The second, experimentally part talks about practical establishing of braking retardation. And the third part of thesis is gived to discussion about established values of braking retardation. The aim of thesis is to find a value of braking retardation, when standing passengers don't fall down.
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