• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 3
  • 1
  • 1
  • Tagged with
  • 5
  • 5
  • 3
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 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.
1

A Study of Legal Affairs of Road Barriers Removal

Tseng, Chi-yan 21 August 2009 (has links)
Road barriers were traffic violations which affects traffic order, safety, and life quality. The behavior of bullying disadvantaged groups via traffic barriers harms human dignity, social justice, and the city's and nation¡¦s image. Although the Traffic Executive Law has reached maturity, road barriers are still all over the place. In order to fully understand these phenomena and come up with right decisions, the social, political, economic, and legal dimensions should be included and studied. Based on theory and practice, this study conducts literature review and data collection and analysis from road barriers removal perspective, especially in Kaohsiung City. According to the basic principles of Traffic Executive Law, the structure of this study is divided into five parts: Establishment Principle, Administrative Organization, Administrative Authority-Limits, Administrative Remedy,and Administrative Supervision. In our diverse and democratic society, the government authority has become more liberal and road barriers cases are endless. To pay attention to people¡¦s opinions and feelings and create the win-win situation, the authority should integrate department¡¦s resources, implement administrative measures efficiently, legally, and rationally. Therefore, the administrative purposes of ¡§people obey the law¡¨ and "Traffic are in an orderly manner and smooth" can be reached.
2

Analýza poškození vozidel při střetech se silničními svodidly / Analysis of vehicle damage in collisions with road safety barriers

Berka, Jan January 2016 (has links)
The theme of this thesis is the analysis of vehicle damage, which was caused by a collision with road safety barriers. The theoretical part describes the guardrail, their classification, structure, process design and methods of their testing, including criteria that must be met. Furthermore, the theoretical part describes the safety of vehicles in relation to the body structure and its material composition. The last chapter in this section is focused on the process of insurance companies in solving their clients' loss events. The second (practical) part is focused on defining the criteria that are important for the determination of certain facts in question accident. These criteria were drawn up based on the requirements of insurance companies while they were processed catalog. This catalog is the result of the work, which describes the happening of insured events, their assessment according to predefined criteria and estimate, if it is a plot manipulated insured or not. It can also be beneficial to insurance companies, which can be used as an aid in dealing with loss events.
3

Utformning av sidoområden med hänsyn till vägens livscykelkostnad

Sandercock, Alexander January 2013 (has links)
Single vehicle accidents are one of the most common types of accidents that occur on the Swedish road network. Depending on the design of the road, the presence of a crash barrier and embankment on the roadside, the outcome of a roadside collision can lead to serious injuries and even deaths.The aim of this project is to investigate the possibility of improving road safety by designing the optimal roadside area based on the results of a life cycle cost analysis (LCC).The questions that have been answered during the duration of this project are: 1) Describe the current technical solutions for roadside area design and the various barrier types used in Sweden.2) Complete an existing mathematical model that has been developed by Hawzheen Karim, for calculating life-cycle costs for various roadside areas.3) Calculate and compare the life cycle costs for the side area with a barrier and without a barrier. By performing an analysis of the documentation on the current guidelines and rules for shaping the roadside, was it possible to describe the current technical solutions for the formation the roadside as well as the current roadside barriers in use today. A mathematical model for calculating the life cycle costs of different barrier types had already been developed by Hawzheen Karim. This model was supplemented so that it could calculate life-cycle costs of the roadside region with and without a barrier. After the model was completed, an analysis was performed to obtain life-cycle costs of a roadside with and without a barrier.The result showed that there is a clear relationship between the slope inclination, fill height, and the rate at which the costs rise. This breakpoint is highly dependent on several factors such as the price of land, the presence of bedrock in the construction process and if the ballast material needs to be treated. A flatter slope causes an increase in both the volume of material and the area of land that needs to be obtained, while a steep slope with a barrier may result in higher costs to society due to fatal collisions with the barrier and higher operating and maintenance costs. / Singelolyckor är en av de vanligaste olyckstyperna som förekommer på det svenska vägnätet. Beroende på utformningen av vägen, förekomsten av vägräcke och slänten på sidoområdet kan förloppet av en avkörningsolycka leda till svåra skador och även dödsfall. Syftet med detta projektet är att undersöka möjligheten att öka trafiksäkerheten genom att utforma det optimala sidoområdet baserat på en livscykelkostnadsanalys (LCC-analys).De frågeställningar som har besvarats under projektets utförande är: 1) Beskriv de nuvarande tekniska lösningar för sidoområdets utformning och de olika typer av räcken som används i Sverige.2) Komplettera en befintlig matematisk modell som har tagits fram av Hawzheen Karim, för beräkningar av livscykelkostnader för olika sidoområden.3) Beräkna och jämför livscykelkostnader för sidoområdet med räcken och utan räcken. Genom att utföra en dokumentanalys på de nuvarande riktlinjer och bestämmelser kunde alla nuvarande tekniska lösningar för sidområdets utformning och olika räckestyper beskrivas. De nuvarande tekniska lösningar som finns för att utforma sidoområden är både enkla och mycket effektiva, och riktlinjerna som finns för utformning av sidoområden är också omfattande och lätta att förstå.En matematisk modell för beräkning av livscykelkostnader av olika räckestyper hade redan tagits fram av Hawzheen Karim. Denna model kompletterades för att kunna användas både på sidoområdet med och utan räcken. För att få fram de samhällsekonomiska kostnaderna var det nödvändigt att använda STRADA (Swedish Traffic Accident Data Acquisition) för att räkna ut hur ofta avkörnings- och påkörningsolyckor i räcken leder till skador och dödsfall vilket blir stora kostnader för samhället. Efter att modellen kompletterats kunde en analys utföras för att få fram livscykelkostnader för ett sidoområde med och utan räcken. Resultatet redovisades grafiskt och skärningspunkterna visade den fyllnadhöjd då det blev mer lönsamt att installera vägräcken med en brant slänt istället för att bygga en flackare slänt. Resultatet visade att det finns ett tydligt samband mellan släntens lutning, fyllnadshöjden och graden till vilken kostnaderna stiger. Denna brytpunkt är mycket beroende på en rad faktorer så som markpriset, förekomsten av berggrund i området och om friktionsmaterial behöver behandlas. En flackare slänt medför en ökning av både volymerna av material samt area mark som behöver inlösas, medans en brant slänt med räcken kan medföra högre samhällsekonomiska kostnader på grund av påkörningsolyckor med räcken samt högre drift-och underhållskostnader.
4

NDT kontrola zabudovaných kotev do betonu / NDT control of anchors built in concrete

Komárková, Tereza January 2012 (has links)
Non-destructive inspection using ultrasonic anchoring method is the only possible way to detect inadequate anchorage length. For rescue roads systems inadequate anchoring can have fatal consequences. Therefore, control anchoring bridge barriers should be carried out every installation of crash barriers.
5

Stavebně technologický projekt realizace Místní komunikace ve Žďáru nad Sázavou / Constructive technological project of

Kalců, Martin January 2015 (has links)
This diploma thesis deals with the development of constructive technology project od local road in Žďár nad Sázavou. Specifically, there is a solution prestressed reinforced concrete construction of the bridge over the Sázava river according to the extent of the diploma work.

Page generated in 0.0851 seconds