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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

Advanced Driving Environment and Intelligent Vehicle Control by Visual Rhythm Analysis

Hsu, Cheng-Jie 05 September 2010 (has links)
The motivation of this paper is to propose a simple and reliable method to identify on-road vehicle events, particularly in the driving situations. A content rhythm is extracted by applying a virtual line lies on the same position of each frame. Thereupon a simplified representation of a continuous video is to record the temporal information of vehicle status. Thus, vehicle situations such as changing lane, safe distance and speed display can be detected instantly by analyzing the statistical characteristics of content rhythm. The proposed method can not only prevent accidents but also improve the traffic safety by monitoring the on-road vehicle status. Experimental results show the proposed method is reliable for vehicle event detection.
192

Road Transportation : Environmental sustainability vs. lead time and costs

Gudmundsson, Erik, Forsberg, Niclas January 2008 (has links)
<p>The recession of the early 1990’s marked the starting point for a transformation of the Swedish transportation industry. Cost oriented production techniques by the industry’s customer increased demand on swiftness, reliability and flexibility in transportation services. This development has continued ever since which in turn has continuously increased the rates of harmful discharges of emissions. The research is performed on the Swedish plastic industry and examines the relationship between environmental sustainability, lead time and cost when selecting road carrier for transportations. The main purpose is to examine to what extent environmental concerns are taken into account when deciding over distribution and furthermore, whether there exist potential and ambitions for improvements. Out of theories concerning transportation modal choice, four points of interest constitutes the basis for the empirical gathering; prioritization of selection determinants, environmental requirements in procurement of transportation services, use of rail freight and acceptable cost levels for implementing environmental sustainability. The study shows that the market of the Swedish plastic industry is driven by price competition and constant pressure from international trade. Naturally, cost is considered to be the foremost selection determinant in terms of transportation modal choice, followed by reliability and lead time. Furthermore, the study shows that environment is of low priority in respect to the other selection determinants. Although the current market condition diminishes the possibilities for changes, there exists a general ambition to become more environmental within the distribution activities. A majority of the respondent firms could potentially accept levels of increased transportation costs which balance with the costs of guaranteeing environmental sustainability in road transportations.</p><p>In reference to increased environmental ambitions, three conclusions can be drawn. The relationship between environmental sustainability, lead time and cost allow for environmental improvements if lead time can be extended to the maximum conceivable limit of the market. Furthermore, the price competition of the market makes own initiatives impossible in terms of raising price for transportations; environmental sustainability in road transportation must therefore be preceded by demand for such. Finally, it can be concluded that environmental improvements cannot be achieved single handedly; costs must be evenly distributed among the suppliers, customers and haulers.</p>
193

Towards Efficient Road Transport in Logistics Operations : A Case Study of IKEA China

Dong, Zhu, Haoqi, Zhou January 2010 (has links)
<p><strong>Purpose</strong>- The purpose of this research is to explore the role of road transport in logistics operations, and to investigate and analyze how IKEA China does operate on road transport in logistics operations.</p><p><strong>Design/methodology/approach</strong>- A single case study has been conducted at IKEA China, including semi-structured interviews and review of internal documents. Along with the case study, literature reviews have been conducted within the areas of efficient road transport in logistics operations.</p><p> </p><p><strong>Findings</strong>- The IKEA China case suggests that the logistics operations should have strong link to the efficient road transport in a manner optimized logistics operations can provide efficient road transport with less cost.</p><p> </p><p><strong>Research limitations/implications</strong>- This thesis is limited to one representative company, and the authors just focus on a study of efficient road transport in logistics operations for narrowing down the thesis. So the solutions and proposals about efficient road transport might not be adopted by other companies or be applied to other parts of the supply chain.</p><p>Additionally, a study of efficient road transport can be discussed, analyzed and studied from a lot of different perspectives, even much better in a holistic viewpoint. Here, the authors just choose a few primary perspectives as research objectives to support this study, which concerns the data and information collected from IKEA China. Finally, because of the limitation of time and personal knowledge, the data collected from IKEA China may neither abundant enough nor deep enough in a manner without exploiting and expanding into all the issues and challenges refers to efficient road transport in logistics operations.</p><p> </p><p><strong>Practical implication</strong>- This research provides suitable solutions for a company towards efficient road transport in logistics operations. Consequently, it will facilitate companies to achieve the purpose of efficient road transport by optimizing their logistics operations in a manner improve the outcomes of insouring/outsourcing, merge-in-transit, consolidation point and packaging.</p><p> </p><p><strong>Originality/value</strong>- This research combines five theoretical fields in terms of sourcing strategy, merge-in-transit, consolidation point, packaging as well as economics scale of trucking cost to contribute proposals to efficient road transport in logistics operations.</p><p> </p><p><strong>Keywords </strong>Efficient road transport, Logistics operations, cost</p>
194

Improved road design for future maintenance : analysis of road barrier repair costs

Karim, Hawzheen January 2008 (has links)
<p>The cost of a road construction over its service life is a function of the design, quality of construction, maintenance strategies and maintenance operations. Unfortunately, designers often neglect a very important aspect which is the possibility to perform future maintenance activities. The focus is mainly on other aspects such as investment costs, traffic safety, aesthetic appearance, regional development and environmental effects.</p><p>This licentiate thesis is a part of a Ph.D. project entitled “Road Design for lower maintenance costs” that aims to examine how the life-cycle costs can be optimized by selection of appropriate geometrical designs for the roads and their components. The result is expected to give a basis for a new method used in the road planning and design process using life-cycle cost analysis with particular emphasis on road maintenance.</p><p>The project started with a review of literature with the intention to study conditions causing increased needs for road maintenance, the efforts made by the road authorities to satisfy those needs and the improvement potential by consideration of maintenance aspects during planning and design.</p><p>An investigation was carried out to identify the problems which obstruct due consideration of maintenance aspects during the road planning and design process. This investigation focused mainly on the road planning and design process at the Swedish Road Administration. However, the road planning and design process in Denmark, Finland and Norway were also roughly evaluated to gain a broader knowledge about the research subject. The investigation was carried out in two phases: data collection and data analysis. Data was collected by semi-structured interviews with expert actors involved in planning, design and maintenance and by a</p><p>review of design-related documents. Data analyses were carried out using a method called “Change Analysis”. This investigation revealed a complex combination of problems which result in inadequate consideration of maintenance aspects. Several urgent needs for changes to eliminate these problems were identified.</p><p>Another study was carried out to develop a model for calculation of the repair costs for damages of different road barrier types and to analyse how factors such as road type, speed limits, barrier types, barrier placement, type of road section, alignment and seasonal effects affect the barrier damages and the associated repair costs. This study was carried out using a method called the “Case Study Research Method”. Data was collected from 1087 barrier repairs in two regional offices of the Swedish Road Administration, the Central Region and the Western Region. A table was established for both regions containing the repair cost per vehicle kilometre for different combinations of barrier types, road types and speed limits. This table can be used by the designers in the calculation of the life-cycle costs for different road barrier types.</p>
195

Road Traffic Safety Problem Based Learning Module

David, Iuliana January 2008 (has links)
<p>Road traffic safety has increasingly become in need of educated road safety professionals, as the number of accidents in the World Health Organization member countries exceeds one million. The profession itself is transitioning from experience based decision making to empirical, theoretical and mathematical based solutions. However, road traffic safety is a multidiscipline, crossing over many fields and requiring a high degree of communication between different institutions. There are very few institutions that provide programs in the field; furthermore, they employ traditional lecture-based teaching methods. The traditional teaching environment does not fulfill the educational needs of future traffic safety professionals due to its rigidity and lack of problem solving exercises.</p><p>An alternative method, namely problem based learning, is recommended as an alternative teaching method in this paper. The thesis is constructed in such a way as to develop a complete road traffic safety educational module at graduate and post graduate level.</p><p>The theoretical basis on which a road traffic safety module is later built is presented in the first part of the thesis. Major concepts in road traffic safety, as well as problem based learning methods are investigated. In addition, a literature review SWOT analysis based on literature is conducted.The module development consists of establishing the road traffic safety learning goals for each segment in the module, appropriate assessment criteria and group work format. The module contains gradual difficulty level problems, starting from the easiest topic and easiest format (closed ended problem) and ending with the hardest topic and hardest format (open ended problem).</p><p>The last section employs the SWOT analysis findings in the theoretical section to develop a SWOT analysis of the road traffic safety module presented in the thesis.</p>
196

Friends with nature : Nature and male bonding in Steinbeck's "Of Mice and Men" and Kerouac's "On the Road"

Johansson, Cecilia January 2010 (has links)
No description available.
197

The interaction of person and situation within the driving environment : daily hassles, traffic congestion, driver stress, aggression, vengeance and past performance /

Hennessy, Dwight A. January 1999 (has links)
Thesis (Ph.D.)--York University, 1999. Graduate Programme in Psychology. / Typescript. Includes bibliographical references (leaves 99-120). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NQ39272
198

Characterization of infield vehicle activity data and exhaust emissions from diesel powered off-road vehicles

Barnett, Ryan A. January 2001 (has links)
Thesis (M.S.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains xv, 164 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 154-156).
199

Evaluation of concrete median barrier delineation under poor visibility conditions

French, Kari A. January 2003 (has links)
Thesis (M.S.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains viii, 86, 82 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 85-86).
200

Yvonne & Clyde / Yvonne and Clyde

Slamka, Benjamin Garrett 23 April 2013 (has links)
The following report describes the conception, pre-production, production, and post-production of the short film Yvonne & Clyde. Set in present day South East Texas, the film was shot in the Texas gulf towns of Bayside, Aransas Pass, and Port Aransas. The film follows the journey of the same two small time crooks named in its title as they drive towards the coast to extort money from an estranged relative. It’s an atmospheric piece centered on tone, setting, character, and performance rather than plot. It is a glimpse into the lives of these two long time friends on the last hundred or so miles of the trip. The majority of the writing contained in the report is a first-person narrative detailing the process of the film’s creation from its early genesis through to principal photography and into post-production. Included in the report is an early draft of the script. / text

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