This diploma thesis deals with the issue of traffic accidents of company cars of the Police of the Czech Republic in the South Moravian Region, in the period 2011 - 2020. The theoretical part is focused to a general acquaintance with police issues and other aspects related to the use of company means of transport and the performance of service at the Police. In the practical part, traffic accidents in the territory are evaluated in the given period in terms of their numbers, technical causes, consequences and other aspects. In conclusion, there are suggested measures which should lead to a reduction in accidents of police vehicles.

Abstract The main theme of this thesis is to discuss the specific conditions of motorcycles participation in traffic. Primarily the author of the processing of statistical data relating to road traffic accidents found the most frequent causes leading to the accident of motorcycles, set out a list of typical hazardous situations and provide an opportunity to prevent them, respectively propose the concrete steps for their reduction, while visual processing is done using by the Virtual CRASH software. Secondarily, it is then processed an overview by modern elements of active and passive safety of motorcycles and their effect on the reduction of traffic accidents, or reduce health risks as the consequences of road traffic accidents. Statistical data are then confronted with the subjective perception of participation in traffic, concretely with motorcycle riders. Their opinions are interpreted by the most frequent responses from the questionnaires, the results are included in the last part of this thesis. The objective of this work is in the comparison of both perspectives - statistical data and the opinions of motorcyclists - about the traffic situation in the Czech Republic. The result of this work is the more realistic view on the issue.

This thesis comprehensively covers the concept of procedure of examination of a traffic accident location by the police and its subsequent documentation in order to maximize the data and materials objectification. The thesis pursue to describe each step taken while investigating a traffic accident, as well as provides an overview of processing the facts collected and the measurements taken at the scene. Furthermore, a summary of each type of clue and damages occurring in the causality with traffic accidents is provided.

My master´s thesis is concerned with the problems of traffic accidents involving public transport in Brno. The first part of my master´s thesis is concentrated on an analysis of the structure of the vehicle fleet of the Dopravní podnik města Brna, a.s. (DPMB). There is an evaluation of traffic accidents of the vehicles of Brno´s public transport in the second part, according to the kind of traction. An analysis of the causes of the most common accidents was carried out on the basis of the ascertained results. In the last part, my master´s thesis is concerned with a proposal of measures to reduce the accident rate.

This thesis deals with the evaluation of the causes of traffic accidents of the Fire and Rescue Service vehicles of the South Moravian Region in 2001-2012. Based on the data and information traffic accidents are comprehensively evaluated and measures are proposed to reduce accidents. The processed material can serve to provide expert services in solving the analysis of traffic accidents.

This diploma thesis deals with creating a database of intentional damages of motor vehicles by selected tools and their documentation. Used tools can by often found in any household or workshop. First part describes how insurance and settlement of claim works. Next part deals with insurance frauds and in the third part damages are sorted into categories. Following part describes damages that incurred in actual traffic accidents and closures whether their were insurance frauds or not, and the susequent part is the creating of intentional damages and their processing into a database. In the end i tis described how such a database is an asset for forensic engineering.

Thesis deals with problems of forensic technical analysis of traffic accidents, concretely with creation of complex methodology for analysis of traffic accidents of vehicles on the crossroad. There are defined terms of "complex system and complex analysis of traffic accident", technically acceptable range of important input values, systematization of accidents on the crossroad with methodologies in the thesis. Thesis shows problematical expert procedures, suggests scheme of expert evidence and includes methodology of measurement of common movement of vehicles on the crossroad and recommendation for expert procedures.

<div>Petri net (PN) is a useful tool for the modeling and analysis of complex systems and has been widely used in a variety of practical systems. This dissertation aims at studying highway transportation systems using Petri nets and investigating several fundamental problems related to the modeling, state/structure estimation, and control of highway traffic.</div><div>This dissertation starts with two kinds of modeling schemes. The first one uses the Probabilistic Petri net to model a highway segment. The traffic movement probabilities have also been shown. The second scheme uses the traditional Petri net structure to model the traffic network around a city’s metropolitan area, where places represent the destinations of interests and tokens represent time units.</div><div>After that, two estimation algorithms and one control algorithm have been proposed, respectively, based on external observations. The first algorithm deals with labeled Petri nets and the objective is to estimate the minimum initial marking that has (have) the smallest token sum. The second algorithm estimates the Petri net structures from the observations of finite token change sequences in terms of the minimum number of transitions and connections. At last, the traffic volume control algorithm is to keep the traffic volume within capacity. The controller will be applied in each evolution step depending on observation.</div><div>Since we have been focusing on the optimization problems of the structure and markings of the Petri net, it is directly related to the optimal route planning problems in highway traffic scenarios. Thus, we can obtain optimized traveling routes by applying proposed algorithms to the traffic systems.</div>

Transportation-related collisions are ubiquitous and often traumatic. Identifying post-collision psychological distress and the characteristics of the collision survivor that lead to distress are vital to the development of early and appropriate interventions. The goals of this study were: 1) to use a questionnaire as opposed to a typical diagnostic interview, 2) to confirm that psychological distress is present in currently hospitalized transportation-related collision survivors, 3) to confirm that different types of distress co-occur, 4) to determine if distress is more likely to occur in those who have had prior distress, and 5) to explore the relationship between symptoms of distress and perception of control by self, others, and God/Higher Power of past, present, and future collision-related events. Subjects were 100 English speaking adult inpatients, 16 years and older, who were less than 3 weeks post-injury, and receiving some rehabilitation. Participants completed a questionnaire which included the Center for Epidemiologic Studies Depression Scale (CES-D), Beck Anxiety Inventory (BAI), and Davidson Trauma Scale (DTS) as well as questions regarding demographics, details of the collision/injury, alcohol/drug use, pain, past and present stressors, social support, and perceptions of life change. Information about head injury and collision-concurrent alcohol and/or drug use was collected from the patient's medical chart. Compared to other traumatic experiences (e.g., physical/sexual abuse, war combat), transportation-related collisions share the characteristics of being sudden, unexpected, relatively brief in duration, and potentially lethal. Prior studies used diagnostic interviews to identify psychological distress in post hospitalized collision survivors. This study used questionnaire-based depression, anxiety, and trauma symptom inventories in a currently hospitalized sample and included head injured patients. As hypothesized there was a significant correlation between the CES-D total score and the BAI total score [Hypothesis 1], the DTS total score [Hypothesis 2], and collision concurrent alcohol and/or drug use (as indicated by medical chart records or score on the CAGE) [Hypothesis 3]. Further, there was a significant correlation between the patient's self-reported history of depression, anxiety, or stress reaction and CES-D, BAI, and DTS total scores, respectively [Hypothesis 4]. Also as hypothesized, perceived personal control of the past "events that caused the collision" was significantly correlated with the CES-D total score [Hypothesis 5] while perceived control of the present "life in general right now" was negatively correlated to the CES-D total score [Hypothesis 6]. Contrary to hypothesis, perceived control of the present "recovery process right now" was not correlated to the CES-D total score [Hypothesis 6] nor was perceived control of the future "preventing a collision like this from happening...again" [Hypothesis 7]. Perception of control by "others" of the present "recovery process right now" was negatively correlated to the CES-D total score. Results support the theory that perceived personal control of past traumatic events increases the likelihood of psychological distress. Some evidence of post traumatic growth was found.

Neste trabalho é apresentado o resultado de estudo sobre a acidentalidade no transporte coletivo da cidade de São Carlos - Brasil, utilizando como fontes de informações os registros contidos em boletins de ocorrência de acidentes da polícia militar e em relatórios de ocorrências, elaborados pela empresa operadora do transporte coletivo, ambos relativos aos anos de 2005 e 2006. O método utilizado compreende as seguintes etapas: i) Coleta dos dados; ii) Processamento e sistematização dos dados; iii) Caracterização dos acidentes; iv) Análise das informações e preparação de diagnóstico; e, v) Elaboração de ações mitigadoras. O processamento e a sistematização dos dados foram realizados utilizando o Banco de Dados de Acidentes de Trânsito (BDAT) da cidade de São Carlos, ao passo que a caracterização foi realizada com foco na gravidade, tipologia, distribuição temporal e espacial dos acidentes. De forma a identificar os pontos, interseções, trechos e regiões críticas de ocorrência de acidentes de trânsito, utilizou-se um sistema de informação geográfica - SIG, aplicado à área de transportes. Como principais resultados obtiveram-se: i) maior ocorrência de acidentes que resultaram em danos materiais e de acidente do tipo colisão transversal; ii) acidentes que resultaram em vítimas não fatais ocorreram em maior número às sextas-feiras e os que resultaram em vítimas fatais aos finais de semana; iii) os acidentes encontraram-se espalhados por toda a cidade, com maior concentração no eixo norte-sul e próximo a pólos de serviços de saúde, dentre outros. As ações mitigadoras propostas foram de caráter geral, como por exemplo, melhoria da sinalização, realização de campanhas educativas, dentre outros; e de caráter específico, direcionada para o cruzamento que apresentou o maior número de acidente no período em estudo. / This work presents the results of a study on accident occurrence in public transportation (buses) in the city of São Carlos - Brazil, using as information sources the records from police accident reports from the local police and accident reports performed by the company responsible for the public transportation (buses), both for calendar years 2005 and 2006. The method applied comprises the following steps: i) Data collection; ii) Processing and data systematization; iii) Accident characterization; iv) Information analysis and diagnosis preparation; and v) Development of mitigation actions. Processing and data systematization were carried out using Traffic Accident Database (BDAT) from the city of São Carlos, whereas characterization was done focusing on severity, typology, temporal and spatial distribution of accidents. Geographic information system (GIS) applied to transportation field was used to identify intersections, road stretches and critical areas of traffic accident occurrence. The main results obtained were: i) most accidents resulted in property damage and side impacts ii) most nonfatal accidents occurred in greater number on fridays and fatal ones on weekends ii) accidents took place throughout the city, with greater concentration on north-south routes and around heath care centers, among others. Proposed mitigation actions were of general nature, such as improvements to signals, educational campaigns, among others; and specific ones towards the intersection that presented the highest number of accidents during this study.