This thesis analyzes aggregated county-level data of fatal alcohol related traffic crashes where a driver was killed in the state of Texas during 1996 to 2005. Alcohol has constantly threatened drivers and passengers alike and continues to be a major cause of fatal crashes in Texas. Specifically, this paper targets those drivers that were killed while driving under the influence (0.01 BAC). With an increase in manageable data and the ease of availability of aggregated crash records, accident analysis can provide a closer look into trends such as spatial-temporal patterns, clustering and correlations to various factors. Furthermore, Geographic Information Systems (GIS) have enabled researchers to more efficiently interpret and study a large amount of datasets using techniques that were previously difficult or inaccessible in applications related to traffic safety and transportation. Loose-coupling of GIS with other spatial analysis programs and/or statistical software packages can now provide important results that in turn relate vital information which can be used towards understanding and potentially alleviating problems in the transportation domain. The following sections concluded that aggregated datasets at the county level are currently incomplete and do not provide the level of detail necessary to formulate a solid conclusion regarding relationships between the chosen factors and the crash dataset. Though this research was successful in mapping spatial variations and clusters, linking variables such as age, gender, location and population to the aggregated crash dataset requires more detailed information about the crash than was available. However, the objectives were successful in representing spatial-temporal patterns across the study period for all designated variables. This was an important step and solid contribution towards the representation of large datasets and their impact on policy, traffic safety, and transportation geography.

<p>The transportation system is a growing concern as economic development progresses. It has become one of the major causes of air pollution as well as deaths world-wide. Hence, the transportation system is not a sustainable path in the world today. The United Arab Emirates (UAE) is a fast developing economy with poor traffic safety. Hence, the purpose of the thesis is to examine the relationship between economic development and traffic safety in the UAE. This is achieved with the support of the Kuznetz Curve Hypothesis, which indicates a positive relationship between economic development and road traffic fatalities initially. However, it will come to change into a negative relationship as the economy develops further. In addition, Institutional Theory states that institutions and organizations contribute to a successful economic development. In order to identify the development of traffic safety in the UAE, the characteristics concerning the issue in the country must be defined. Hence, a comprehensive analysis of the traffic safety in the UAE is carried out with the support of the Kuznetz Curve Hypothesis and Institutional Theory. A regression analysis confirms that there is a relationship between traffic fatalities and economic development. Until today, traffic fatalities have increased with national GDP in the UAE. Yet there is no reason to believe that this relationship has changed for the better. However, according to Institutional Theory, an improvement may be achieved through active work. It is important for the public authorities in the UAE to set explicit goals, so that institutions and organizations are able to integrate and coordinate their struggle for a safer traffic.</p>

published_or_final_version / Civil Engineering / Doctoral / Doctor of Philosophy

While new road lighting technologies, either LED or adaptive road lighting systems, offer a wide range of unique potential benefits (mainly in terms of energy savings), it is necessary to evaluate the safety impacts of these technologies on road users. The literature survey shows that providing light on previous unlit roads has a positive effect on traffic safety. Reducing the amount of light has the opposite effect. These studies are usually conducted by using crash numbers, which makes it impossible to draw conclusions on changes in driving behaviour. Driving behaviour analyses need special approaches and indicators. Therefore indirect indicators such as speed and safety relationship, jerky driving and traffic conflict parameters are presented. The individual character of such data is difficult to deal with and limits big scale analyses. In order to have a practical example of such indicators a case study is conducted. Floating car data collected in Vienna is used to analyse travel speeds of taxi drivers at two LED test sites. A simple before-after analysis is used with data from January 2011 to May 2012 in order to examine an expected increase in speed due to a better visual performance of LED light. However the results show either no changes at all or a trend in speed reduction of 1km/h in average. Unfavourable test site locations might limit the significance of the results.

No description available.

A few years ago bicycles, buses and trains were the main mode of transport for the movement of indigent persons and goods in the study area of Mafikeng. From the late seventies, with the advent of taxis everywhere, these established modes of transport diminished to an extent that, in this recent study, well over 90 percent of the 200 interviewed commuters, were shown to be affirmed regular minibus-taxi passengers. It has been proved by this research and others that the taxi industry, provides passengers with a relatively comfortable and acceptable transport system. However, an increase in vehicle ownership and the flourishing taxi business, have complicated and compromised road traffic with resultant complex and serious problems of traffic safety to road congestion and related violation of the road rules by reckless taxi drivers. Unparalled deaths and expenses resulted from delays, accidents and incidental violence, a situation which is detrimental to the sustainable development of the capital's economy, road users and destroyed properties. If the Mafikeng society is to continue in stability, certain essential tasks need to be put into operation. If the city fails, society may disintegrate or change its form drastically. A certain degree of order and stability are essential for the survival of the social system. The study therefore, recommended, inter alia, that a prerequisite be set rigorously, to guide and educate members into the acceptable ways of society. so as to empower and ease the burden of the police and legal systems in keeping a firm check on any deviation from traffic safety and that, the aim and objectives of taxi associations. primarily be on the improvement of services provided by its members to the public. / (MBA) North-West University, Mafikeng Campus, 2005

Intersection crashes accounted for 47 percent of the total number of crashes in the State of Georgia from 2000-2005, and as a location where crashes occur, represent the largest number of crash locations in the state. Federal legislation requires states to implement statewide safety plans to reduce fatalities, crashes, and improve safety. Intersections vary in different ways and there are individual factors that can cause an intersection to be safer or more dangerous than another. Acquiring better, uniform, and more updated information with regard to intersection crashes will enable transportation officials to prescribe policies for improving safety in an easier and more expedited manner. This thesis recommends a five-part program for intersection safety that will enable Georgia transportation officials to better analyze, identify, and implement countermeasures at intersections that are determined to be the most hazardous. The plan consists of: 1. Standardized Hazardous Intersection Identification Method 2. Statewide Public Involvement task force 3. Automated Police Crash Reporting Through Improved Technologies 4. Strategic Highway Safety Plan (SHSP) Intersection Safety Strategies (8 State Comparison) 5. Statewide Minimal Intersection Safety Equipment The five parts of this plan lead to a statewide standard method of analyzing intersections based on uniform collection methods and uniform equipment statewide.

Thesis (M.S.)--University of Nevada, Reno, 2007. / "May 2007." Includes bibliographical references (leaves 84-85). Online version available on the World Wide Web.

Thesis (M.Soc.Sc. Psychology)--University of Waikato, 2007. / Title from PDF cover (viewed March 4, 2008) Includes bibliographical references (p. 127-137)

Thesis (Ph. D.)--Murdoch University, 1997. / Thesis submitted to the School of Social Sciences. Includes bibliographical references (leaves 401-418).