Sökresultat:
3225 Uppsatser om Railway transport technology - Sida 9 av 215
En klimatanpassad järnväg : Långsiktig planering av infrastruktur i ett föränderligt klimat
Global warming is going to affect our society in many ways. One can say that the problem we face has two different sides. One of those sides has received a lot of attention, namely how we can reduce our emissions of greenhouse gases. However, because of the climate system's inertia the climate will continue to evolve over a period, no matter how much we will cut back on emissions. Because of this, we have to start adapting our society to the climate changes that we cannot influence.
Skyltningen i Stockholms innerstad : Är den användbar för turister?
The purpose of this essay is to investigate if signage for tourists in Stockholm is enough to easily find your way to attractions and public modes of transport and how the city works with the issue. Triangulation was chosen for the essay, that is, a mix of qualitative and quantitative methods. A survey of 100 tourists was carried out in the Old town of Stockholm and interviews were made with stakeholders in the tourism industry and signage policy in Stockholm. The survey showed that most of the tourists found it easy to find their way in Stockholm and that they were content with the signage. Few of the tourists thought it was difficult to find their way in Stockholm.
Utredning av möjlighet att automatisera trucktrafik
This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.
Självgående fordon hos Sandvik do Brasil
At the plant of Sandvik do Brasil in São Paulo there is a need for improving the transport of inserts between the plant building and the stock building. The idea is to install a system with an Automated Guided Vehicle (AGV) to take care of this transportation. The purpose of this report is to present which demands there are on the system and to find the best solution according to the demands.To conclude this work a study was made of the plant and the AGV technology was examined. Several providers of AGV solutions were contacted to get information about prices and detailed solutions.The conclusion was that the most suitable system for this application is a small unit load vehicle using inductive wire as guiding system..
ÄTA-arbeten på Trafikverket
?ÄTA-work? (Changes, Supplementary and Retiring works) is more or less common in all construction projects whether it is about houses, roads or railways, in the planning stage, or in the construction stage. For the Swedish Transport Administration, which is the largest purchaser of infrastructure in Sweden, ÄTA-work is a hotter topic than ever.Economists and managers want to draw conclusions on the projects share ÄTA-work, while the project manager is concerned about whether it is possible to draw any conclusions at all as each project is unique in itself and has its own merits. There is a big variation in the amount of ÄTA-work in different geographic districts in the Swedish Transport Administration.This study shows that the Swedish Transport Administration does not have a unanimous approach regarding the management of ?ÄTA-work?.
Trevlig resa!
Kan man förhöja hela upplevelsen av att resa kollektivt genom att förändra textilierna i denna miljö? Hur anpassar man sin estetik till en miljö som är så hårt utsatt för smuts, slitage och skadegörelse? Kan man genom att förändra textilien skapa en bättre relation mellan passageraren och sätet?Textile design for public transport..
Samspel, etablering och koppling mellan naturgas och biogas
Sweden has a natural gas grid extending along the west coast, from Trelleborg to Stenungsund. There are also several smaller local networks where a planned natural gas pipeline from Skutskär to Hofors prompted the need for a comprehensive study. This study examines the linkages that exist in terms of technology and market of natural gas and biogas in Sweden. Sweden has set high targets for the future with ambition to become independent of coal and oil as energy sources. Since 1985, a part of the solution has been import of Danish natural gas.
Distribution av sjukvårdens förbrukningsvaror en beskrivning av hur distributionssystemet kan förändras
This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.
Kartläggning av truckflöden på Primary Products : Ur ett Lean Production perspektiv
The Transport division is responsible for the internal transports on Sandvik MaterialTechnology AB. At the moment there is no clear picture of how the straddle carriers aremoving at the division Primary Products and if it is working in a satisfying way. It isimportant to see the whole picture of the transportation flow so improvements can be made.The purpose of this essay is to survey and analyse the truck flow in a Lean Productionperspective. The essay is delimited to only include straddle carriers transportation ways in thePrimary Products division. To survey the truck flow we have used a method called Walkthrough.This means that we have walked thorough the whole production flow andinterviewed some of the employed on the way to get the necessary information.
Erfarenhetsåterföring : Hur kan en verkningsfull återföring skapas mellan produktion och kalkyl?
Sweden is dependent on secure sea transport. Shorter disruption of imports of fuel and crude oil can be managed with an emergency stock, but a prolonged halt in imports creates problems. For industry, the vulnerability is greater. Fragmented production chains in combination with expenditure reductions in inventory causes a dependency on proper transport of intermediate goods in the manufacturing industry. A lengthy disruption thus involves disruption of production for both domestic consumption and for export goods containing imported parts.In order to secure shipping routes with a limited number of vessels, Mine Counter Measures (MCM) capacity is required, and according to the Armed Forces, developed with new sensors and autonomous vehicles.
Från digitalt utanförskap till digital gemenskap : En hypotetisk väg till digital gemenskap
We are in an emerging digital society where we are increasingly dependent on the mastery of IT and digital technologies to better carry out our everyday tasks. They cover everything from keeping in touch with family and friends to pay bills and declare. At the same time there are those who have not learned how to use the new technology and live their lives outside of the digital society. What happens to these people, in a society that is becoming increasingly digitized? Do they take harm by being in digital exclusion? It looks like this are issues that will not become less important as digital technology constantly changes.
Växelvis boende: Flexibla bostäder för "varannan vecka-familjen"
This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.
Varning! Ett tekniskt fel har uppstått : En undersökning kring hur turistbyråer hanterar informationsteknik.
This research is based on the observation that people in the service industry is being replaced by technology. This insight formed a foundation for the presentation of the problem this essay is based upon. We began to speculate over how tourist information bureaus handle the changes, regarding information technology, in their surroundings when their main task is to inform and communicate with their market. Information technology has created new possibilities for organizations to reach their consumers and it has influenced all kinds of industries. We decided to examine organizations in the tourism sector because it is one of the biggest and fastest growing industries in the world. The entering of information technology in the tourism industry has changed its structure and we want to examine how tourist information bureaus succeed to deal with this phenomenon.The aim with this essay is to examine how and to what extent tourist information bureaus integrate with changes in their surroundings caused by information technology and which values that slip away/ is added by the adaption.
Buntning av grot med lastbilsmonterad utrustning :
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.
Kategorisering av IT-yrken samt hur väl KTH:s IT-utbildning matchar näringslivets efterfrågan
This report discusses how well the competences the master program in Information Technology, given by the Royal Institute of Technology, meet the demands from the business life. It is made qualitative and about 20 companies have taken part to get the results. The study has been made to see how well the three first years and the entire five year master, with different aiming, meets the demands. The results shows that the master program needs to be remodeled to meet the demands in the more ?softer competencies?, which for example is people management and an understanding about economical, juridical and cultural aspects.