The aim of my diploma thesis is the analysis of traffic accident quantity on roads (highways and motorways) of Central Bohemia. My personal contribution to this topic is the particular analysis of accident frequency within Central Bohemia between 1994 and 2007. Nobody has dealt with such an analysis in frame of this region until the present. In the theoretical part of the thesis, basic definitions are expounded from the theory of traffic accident frequency and the partition of traffic accidents according to different criteria, and the classification of roads. There is a situation described in Central Bohemia for each type of classification for mentioned years. The practical part of the thesis is divided into three sections, which analyze problems from different points of view. In the first part, there are detected reciprocal relations between basic indicators of traffic accident frequency in the particular districts of Central Bohemia. The next part targets the analysis of time series of causes and results of traffic accidents within this region, in particular months of mentioned years. The aim of this part is to describe the trend of time series by acceptable methods and to estimate their supposed development in the following 12 months. In the third and final part of the thesis, the analysis of less commonly considered causes of traffic accidents are performed, as is directional conditions, status of road surface, visibility, weather conditions and transversal setting of communication. The target of this final part is to verify whether these factors significantly influence the number of traffic accidents on different types of roads.

Diese Arbeit soll im Wesentlichen dazu beitragen, die Frage der Abhängigkeit von Unfallursachen bzw. beschreibenden Eigenschaften eines Verkehrsunfalls zum Alter des Hauptverursachers im motorisierten Straßenverkehr zu beantworten. Anhand der Darstellung des Unfallgeschehens in der BRD kann abgeleitet werden, dass die Anzahl der Unfälle im Straßenverkehr seit einigen Jahren langsam aber stetig steigt. Im Gegenzug sinkt jedoch die Schwere der Unfälle. Anhand der Definition verschiedener verkehrsunfallbezogener Risikofaktoren können die Unfallrisikogruppen in Form der Fahranfänger und Senioren identifiziert werden. Das Risiko zu verunfallen ist für einen 17-Jährigen Fahranfänger mehr als sechsmal höher als das Risiko der Referenzkategorie der erfahrenen Fahrer. Die Gründe dafür werden durch eine altersbezogene Unfallursachenanalyse offengelegt. Um einen Überblick über verschiedene Ansätze zur Bestimmung der Unfallursachen zu bekommen, wird neben den durch die Polizei kategorisierten amtlichen Unfallursachen und der merkmalsorientierten Dokumentation das Konzept eines verhaltenspsychologischen Ansatzes diskutiert. Es ist davon auszugehen, dass die Gründe für einen Unfall facettenreicher sind als es die Kategorien der amtlichen Statistik abbilden können. Primär wird davon ausgegangen, dass verschiedene Metaereignisse, wie zum Beispiel Ablenkung in Kombination mit einer amtlich dokumentierten Unfallursache, in einer Wirkungskette als Bedingung für ein Unfallereignis auftreten. Mit Unfällen gehen auch immer Strategien zur Unfallvermeidung einher. Präventionsmaßnahmen werden in umfänglicher Form von verschiedenen Interessengruppen formuliert und praktiziert. Wesentliche Ansätze werden zur Bewertung des Zusammenhangs zwischen personenbezogenen Merkmalen, wie dem Alter, diskutiert. Eine Clusteranalyse, als strukturentdeckendes Verfahren, von sächsischen Unfalldaten klärt, ob das Alter einer Person im Zusammenhang mit einer dokumentierten Konfiguration von Unfalleigenschaften steht und schafft dabei eine Grundlage zur Ausrichtung geeigneter Präventionsmaßnahmen in Abhängigkeit zum Alter des Hauptverursachers. Die wesentlichen in der Literaturrecherche formulierten Zusammenhänge zwischen den Unfalleigenschaften und dem Alter einer Person gelten auch für den räumlich begrenzten Unfalldatensatz. Zusätzlich konnten eine Reihe weiterer Eigenschaften als bedeutsam klassifiziert werden. Zudem ergeben sich auch für Unfallverursacher, die keiner Risikogruppe zugeordnet wurden, bedeutsame Eigenschaften eines Unfalls mit Getöteten.

La investigación presenta un nuevo diseño de rotondas llamado turbo rotondas, estos tipos de rotondas se adoptan, debido a que las glorietas convencionales multicarril se encuentran relacionadas con problemas como lo son el comportamiento de los conductores en la entrada, carril circulatorio y zonas de salida de la rotonda; donde se observa el cambio e invasión de los carriles sin respetar las marcas divisorias de carril lo que genera mayor velocidad. Las turbo rotondas a comparación de las rotondas convencionales, poseen beneficios operativos y de seguridad, gracias a que tienen separadores de carril cuya principal función es de restringir los cambios de carril o malas maniobras de los conductores, reducir la velocidad y los puntos de conflictos. Para el caso de estudio se eligió a la rotonda Monitor por la congestión vehicular que presenta, la mala operación de la rotonda y la alta tasa de accidentes de tránsito, por lo que se plantea un rediseño físico y operacional mediante una turbo rotonda, donde se evaluará los niveles de servicio, las demoras y el nivel de seguridad a través de una microsimulación mediante el software Vissim 9 entre la rotonda actual y la propuesta. Finalmente, después de realizar varias corridas al programa se llega a la conclusión de que el replanteo físico y operacional de la rotonda Monitor Huáscar, a través de la Turbo Rotonda tipo rotor beneficia a los usuarios mejorando el nivel de servicio de F a C. Esto quiere decir, que las demoras y los tiempos de viaje se reducen significativamente. Además, de mejorar la seguridad vial reduciendo el número de puntos de conflicto. / The research presents a new roundabout design called turbo roundabouts, these types of roundabouts are adopted, due to specific multi-lane roundabouts are related to problems such as the behavior of drivers at the entrance, circulatory lane and exit areas of the roundabout where the change and invasion of the lanes is observed without respect the lane divisions marks which generates greater speed. The turbo roundabouts to the comparison of compact roundabouts, the features operational and safety benefits, thanks to the fact that they have rail separators whose main function is restricted lane changes or bad driver jaws, reduce speed and conflict points . In the case of the study, the roundabout Monitor was chosen because of the traffic congestion that shows inefficiency in the operation of the roundabout and high traffic accident rate, so a physical and operational redesign is proposed through a turbo roundabout, where it is evaluated service levels, delays and security level through microsimulation using Vissim 9 software between the current roundabout and the proposed one. Finally, after making several runs to the program, it is concluded that the physical and operational replacement of the Huáscar Monitor roundabout, through the Rotor-type Turbo Roundabout, benefits users by improving the service level from F to C. This wants That is, delays and travel times are significantly reduced. In addition, improve road safety by reducing the number of conflict points. / Tesis

This dissertation describes the issue of a complex system for analyzing the collision of a motorcycle with another vehicle and suggests a suitable methodology for solving this type of traffic accident. It summarizes the current knowledge in the field of motorcycle accidents withother vehicles, including their statistics and categorization. The author statistically evaluates accidents by their causes and proposes a methodology for solving individual types of motorcycle collisions with vehicles. To supplement and refine the input data for the analysis of road accidents involving motorcycles, a set of author’s own measurements made on different types of motorcycles is included. The thesis contains measurements of their acceleration, deceleration and avoidance maneuvers. Other actual contributions of the thesis are represented also by flowcharts, offering a comprehensive approach to solving individual types of colissions of motorcycles with other vehicles.

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.

This diploma thesis presents safety inspection in selected localities in the Moravian-Silesian Region. Ten sections and ten intersections from rural area were selected for an accident rate analysis at first. These locations were compared on the basis of accident rate analysis and accident indicators. After that, were selected three sections and three intersections for a safety inspection. The safety inspection included a visual inspection and risk identification. For all identified risks were proposed a possible solutions.

Thesis (M.Sc. (Statistics)) -- University of Limpopo, 2020 / Background: Death and economic losses due to road traffic accidents (RTA) are huge global public health and developmental problems and need urgent attention. Each year nearly 1.24 million people die and millions suffer various forms of disability as a result of road accidents. This puts road traffic injuries (RTIs) as the eighth leading cause of death globally and RTIs are set to become the fifth leading cause of death worldwide by the year 2030 unless urgent actions are taken. Aim: In this paper, we investigate factors that contribute to road traffic deaths (RTDs) in the Limpopo province of South Africa using models such as the generalized linear models (GLM) and zero inflated models. Methods: The study was based on retrospective data that comprised of reports of 18,029 road traffic accidents and 4,944 road traffic deaths over the years 2009 – 2015. Generalized linear modelling and zero-inflated models were used to identify factors and determine their relationships to RTDs. Results: The data was split into two categories: deaths that occurred during holidays and those that occurred during non-holiday periods. It was found that the following variables, namely, Monday, human actions, vehicle conditions and vehicle makes, were significant predictors of RTDs during holidays. On the other hand, during non-holiday periods, weekend, Tuesday, Wednesday, national road, provincial road, sedan, LDV, combi and bus were found to be significant predictors of road traffic deaths. Conclusion: GLM techniques, such as the standard Poisson regression model and the negative binomial (NB) model, did little to explain the zero excess, therefore, zero-inflated models, such as zero-inflated negative binomial (ZINB), were found to be useful in explaining excess zeros. Recommendation: The study recommends that the government should make more human power available during the festive seasons, such as the December holidays, and over weekends.

This diploma thesis deals with a comprehensive analysis of the photographic documentation of vehicle damage in traffic accidents. A systematic overview of the current documentation and included inspection is carried out in the analysis. Police records are compared with records made during the crash tests. Further, the documentation in this thesis is divided into two groups of conflicts. The representative of the accidents are described in detail and then evaluated. Similarly, this procedure is practiced on other car accident that reflect the mutual deformation. The result of this thesis is to determine the optimal location of the lens for the acquisition of documentation and establishing a baseline number of photos to document damage to the vehicle after the traffic accident.

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.

This diploma thesis deals with the ability to determine impact speed of vehicles in traffic accidents. Thesis tries to find out whether jammed needle of speedometer and tachometer, as well as needle's imprint, could provide relevant informations for traffic accident analysis. The outcome is formulation, whether these informations are trustworthy, or under which circumstances are valid.