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624 Uppsatser om Road transportation - Sida 17 av 42
Kostnader vid gallring med flerträdshanterande aggregat, från skog till industri
Profit in first commercial thinnings of today is hard to achieve. This is because of prevailing pulpwood prices and because of high costs of logging and transport. To reduce these costs higher productivity is advocated. One way to increase the productivity is the use of multi-tree handling harvester heads. The aim of this study was to calculate logging and transport costs in first thinnings, where multi-tree handling has been used.
En studie i hur järnvägens möjligheter kan appliceras inom AB Volvo : med hänsyn tagen till företagets logistikkrav
In the year of 2011, the new CEO of AB Volvo announced a major reorganization. This reorganization was a contributing factor to the start-up of this thesis.Volvo Group Logistics Services (VGLS) is Volvo Group?s global logistics partner, which designs, manages and optimizes all of the group's incoming and outgoing logistics flows. With the reorganization, VGLS started a project regarding responsibilities around railway flows. Within the project a demand to collect logistics requirements occurred.
Enklare korglutning
This project was led on behalf of Bombardier Transportation in Västerås, Sweden, incollaboration with KTH Stockholm and EPFL Lausanne. This project is connected to thedevelopment of a new and simplified tilt system for rail vehicles.Growing competition from other means of transportation has forced railway companiesthroughout the world to search for increased performances.Travelling time is the mostobvious performance indicator that may be improved by introducing high-speed trains.They require very large curve radii and long transitions curves not to impairridecomfort, another performance indicator. Building new tracks adapted to high speedtrains is very costly and can only be justified where the passenger base is large.Trains with the capability to tilt the carbodies inwards the curve is a more cost efficientalternative. The tilt inwards reduces thelateral force felt by the passengers allowing thetrain to pass curves at enhanced speed with maintained ride comfort but increases thefrequency ofmotion sickness.The benefits of tilting trains are improved speed capability in curves and enhancedpassengers comfort, but at higher buying and maintenance cost. As the conventionaltrains increase their speed in curves, the performance advantage of tilting trains isreduced while their prize is still kept significantly higher and constant.
5 minuter till Luleå : en visuell studie av en stadsinfart
SUMMARYThe demands on the public environment are big and in particular on the environment of communication which we spend a lot of time in on our way to work, school etc. The city-approach is a road section that leads from the periphery of the city to the centre of the city, often through boring and meaningless industrial areas that displays the back side of the city to the voyager on the city-approach. The intentions of this thesis in landscape architecture has been to study one of the two city-approaches to the city of Luleå, the close surroundings and contextual position in the city and not at least give suggestions of ways how the city-approach can be changed, clarified and improved. The study of the city-approach has been made by studying literature that concern city-approaches and the architecture of roads in general. Studies of different analysis methods has been made to find appropriate approaches to work with the specific study of the city-approach to Luleå.
Visuell informationshantering i tunga fordon : Behovsanalys och förslag till förbättringsåtgärder
The flow of information in road vehicles intensifies as new techniques develop. Informationsources such as cell phones, navigation equipment and radios demand the driver?s attentionwhile he or she must stay focused on the road to perform a safe driving. Today the visualinformation inside the vehicle is mostly located on the dashboard, which forces the driver tolook down when shifting attention between the environment outside and the informationinside the vehicle. One way to avoid this is to useHead-up Display (HUD), a technique thatprojects information in the visual field of the user.This master thesis has been performed in cooperation with Scania CV AB, a world leadingtruck producer.
Riskanalys av farligtgodsled i Kalmar - Rekommendationer med avseende på detaljplan Södra vägen
This report contains a risk analysis of transportation of dangerous goods in Kalmar. The analysis is based on quantitative data and an evaluation of the risks based on both the probability of occurring accidents as well as the consequences of those. The risks are presented as both individual and societal risks..
Markering och risning av basvägar inom slutavverkningstrakter : en intervjustudie hos maskinförare och planerare
In an attempt to prevent ground damage and to reduce harvesting costs, StoraEnso's districts Värmbodal and Fryken, selected a number of final felling areas where the base roads have been marked by planners in the districts. The parties involved in the experiment are mainly planners, harvester operators and forwarder operators. The purpose of this paper is to determine the findings of this trial and to find cost savings or lost revenue. This has been done with a sample of interviews from the involved parties who logged the chosen felling areas. Literature about the interview process has been used to facilitate data collection, interpretation and analysis of the material.
If we look at profitability based on assumed income and expenditure, revenue per MWh would be 63 SEK.
Artrika vägkanter - hur påverkas de av slåtter och underhållsdikning?
ABSTRACT
This study is an exam work at the Department of Ecology at the Swedish Agricultural University, Ultuna, Uppsala. The field work was performed in the counties of Uppsala and Västmanland.
Grassland areas, exposed to annual mowing, are known to host a variety of rare and red-listed vascular species. The area of these grassland are, however, decreasing in the landscape due to modern farming. The fact that roadside verges maintain regular mowing has proven to be a successful concept for many rare vascular plant species in this habitat.
Vascular plants along roadside verges at the State road network were inventoried due to a government mandate during 1995 and 1996. As a result ?Species rich roadsides? were pointed out.
Identifiering och reducering av köer i samband med återbesök
Purpose ? The purpose of this thesis is to develop a total cost model for container transports and create a tool that calculates a suitable transport quantity from an economic view, which fulfills the demands on delivery service. To achieve this purpose the following questions will be answered:Which costs are affected by the decision between the two transport alternatives LCL and FCL? How does the decision of sending product LCL or FCL influence the delivery service? How can a tool be constructed to simplify the decision-making process regarding the choice of sending products LCL or FCL? Method ? A total cost model was developed. This model is supported from existing literature.
Metoder och design av visionärt personbilskoncept
I projektet, som är ett examensarbete från programmet högskoleingenjör i teknisk design vid Luleå tekniska universitet, har ett koncept på en delvis förarlös bil tagits fram. Arbetet har utförts mot instutitionen för arbetsvetenskap och har givit värdefull erfarenheter inför fortsatta studier vid Umeå Institute of Design. Resultatet är en lyxig fyradörrars kupé med tänkt lansering omkring år 2020. Bilen sköter till största delen av tiden körningen på egen hand men tillåter även manuell körning på ett nytt och revolutionerande sätt. Fordonet är även en social mötesplats där passagerarna får uppleva en ny dimension av att resa med bil..
Regionförstoringens effekt på den lokala kommunikationstillgängligheten : En fallstudie av Strängnäs och dess omland
The aim of this study has been to describe the ongoing region enlargement process in the region Mälardalen, located in the east part of Sweden, and to investigate how this process can affect the local level. The study is especially orientated on public communications and accessibility. The intention has also been to examine how the local accessibility can affect the re-gional development in Mälardalen. The local investigation object that has been chosen for this research is the city Strängnäs, situated in the province of Södermanland. The city of Strängnäs and the cities in it?s near geographic surroundings has been the benchmark for this casestudy, in which the local accessibility with public transportation has been investigated.
Upplevelser av fysisk aktivitet i ett slättlandskap :
Title: Experiences of physical activity in a flat country
Regular physical activity provides many chronic diseases and is an important contributor to health promotion. According to Swedish goals for public health, community planning ought to provide opportunities for exercise in all groups of the population and exercise in daily life should be uncomplicated, even in rural areas. The purpose of this study was to explore how individuals living in a flat country experienced their opportunities for exercise on a regular basis. Four semi-structured interviews were carried out with a phenomenological approach and for the analysis a phenomenological-hermeneutic method was used, resulting in two main themes and nine sub themes. The first main theme ?The reciprocal relation between physical activity and the landscape? showed that the informants experienced that they had good opportunities in the landscape for physical activity, it was easy to exercise on a regular basis, provided there was motivation.
Konstruktion av transportvagn för mat
This thesis is the result of the class Examensarbete, 15 credits of the mechanical engineering program at Halmstad University. The class represents the final part of the program with the aim to attain a Bachelor of Science. It´s a project made during the spring 2014 in collaboration with Alutrade AB and ScanBox Thermo Products AB.The assignment is to develop a new transportation trolley for ScanBox. The aim is to complement their range with a product that opens up to new markets. That set new demands for materials and also manufacturing- and assembly methods.
Fördelning av en kostnad utifrån olika rättviseteorier :
The increasing road traffic in Sweden will require investments in the infrastructure that the tax withdrawal of today will not allow according to a new government report, SOU 2006:33. An existing willingness to pay for those investments has therefore become an alternative to increases in taxation to be able to cover the costs. A proposal to let the willingness to pay, alternatively increases in taxation that act proportional, decide how a cost is distributed can be said to be related, but not fully correspond, with different theories of justice described by Robert Nozick and John Rawls. It can therefore be interesting to see how the two different theories of justice are edified and how they distribute a joint cost. The aim of the first part of the thesis is to present and criticize Rawls' and Nozick's theories of justice in a common formulated economic model.
ITS under byggtid - utvärdering med dynameq : Fallstudie: Intunnling av E4/E20 Tomteboda - Haga södra
Essingeleden in Stockholm is the most heavily congested road segment in Scandinavia and it is ofgreat importance for as well traffic within the city as for transit traffic. The capacity of Essingeledenand Norra Länken is not enough to accommodate all traffic. At times it is not moving at all, whichresults in long queues and an augmented risk of accidents. Consequently measures for increasing thecapacity on E4/E20, which will reduce congestion and the risk of accidents, are implemented byTrafikverket. In fall 2012 one lane of three at Pampas will be closed and so will the exit fromEssingeleden to Norra Stationsgatan, called Parkeringsbron.