Cost Overrun is something that plagues infrastructure projects, both in Sweden and globally. The repercussion of it can be severe since it not only hurts the public’s perception of how the public authorities manage and allocates its resources, but also due to the immense opportunity costs that arise when the increased costs need to be covered. In general, the factors that lead to cost overrun in infrastructure transport projects can often be derived from technical, psychological, political, and economical factors, and it is not uncommon that there is a combination of these factors, which is why the subject of cost overrun is so complex. With a highly unique dataset, this paper examines cost overrun in Swedish infrastructure transport projects to see if there is a statistical relationship between cost overrun and the size of a project, its regional location, and whether it is a road- or railway project. Furthermore, an evaluation of the process of estimating and forecasting costs will be conducted. The results shows that the characteristics of regional locations have a significant relationship with projects experiencing cost overrun and that cost overrun is more common in smaller projects. There were no significant differences in cost overrun between types of projects, but it was found that between the period 2018 to 2022, cost estimates had been underestimated by approximately 34%.

Transportinfrastruktursystem spelar en viktig roll i stadsutvecklingen. Nyttjandet av underjordiska utrymmen för transportsystem ökar alltmer och används som potentiella lösningar för att lösa urbaniseringsproblem. För att möta den snabba befolkningstillväxt som Stockholm står inför initierade regeringen Stockholmsöverenskommelsen 2013 som innebar en omfattande utbyggnad av tunnelbanenätet samt en ökad bostadsbebyggelse. Tunnelbaneutbyggnaden är i Sverige den första att genomföras på trettio år och projektet har i det tidiga skedet redan ändrats i omfattning i två etapper.  Syftet med studien är att bidra till en ökad förståelse inom området inför framtida projekt av samma karaktär. Målsättningen är att undersöka vilka faktorer som påverkar projektets benägenhet att ändras och hur dessa faktorer i sin tur påverkar projektledarens möjligheter att leda projektet. Problemet avgränsas till ett beställarperspektiv i tidiga skeden och studeras i en svensk kontext.  Forskningen har genomförts som en kvalitativ fallstudie. Fallstudien består av dels en intervjustudie dels en dokumentstudie. Det studerade fallet representerar projekt Akalla-Barkarby som är ett av de delprojekt som ingår i Stockholmsöverenskommelsen.  Studien har identifierat ett antal faktorer som antas påverka projektomfattningen till en större benägenhet att ändras. Dessa faktorer är relaterade till dels de förutsättningar som låg till grund för projektet i och med investeringsbeslutet dels komplexiteten i projektsystemet. Dessa faktorer skapar osäkerheter och begränsar projektledarens möjligheter att leda projektet. / Transportation infrastructure systems play an important role in urban development. The use of underground spaces for transport systems is increasing and is viewed as a potential solution to solve urbanization problems. To meet the rapid population growth that Stockholm is facing, the government initiated the Stockholm Agreement in 2013, which entailed an extensive expansion of the metro system and an increased housing development. The metro system expansion in Sweden is the first to be completed in thirty years and the project has in the early stages already changed in scope twice.  The purpose of the study is to contribute to an increased understanding in the field for future projects of the same nature. The aim is to investigate the factors that affect the project's propensity to change and how these factors in turn affect the project manager's opportunities to lead the project. The problem is limited to a Client perspective in the early stages and is studied in a Swedish context. The research has been carried out as a qualitative case study. The case study consists partly of an interview study and partly of a document study. The case represents the Akalla - Barkarby project, which is one of the sub-projects included in the Stockholm Agreement.  The study has identified several factors that are assumed to influence the project scope to a greater tendency to change. These factors are related partly to the preconditions of the project based in the investment decision and partly to the complexity of the project system. These factors create uncertainties and limit the project manager's opportunities to lead the project.

Submitted in fulfillment of the academic requirements for the degree of Master of Technology in Construction Management, Durban University of Technology, Durban, South Africa, 2015. / On-time completion and conformity with assigned cost of every project are the most important factors in the success of project plans. Cost overruns and time overrun (delays) have been critical problems of many projects around the world in general and in South Africa in particular. The main objectives of this research are to assess the dominant causes of cost and time overruns, identifying possible and practical measures that can minimize overruns in office building construction projects around eThekwini Municipal area of Kwazulu-Natal. These objectives are achieved through the implementation of the research methodologies that are mainly literature review and questionnaire survey conducted to identify and evaluate the significant factors contributing to delay and cost overruns within the projects of interest. A review of literature identified eighty-five variables for delay, grouped in nine major categories and nine variables for cost overruns ranked in their order of importance in three sets based on the responses from the professionals working for the client, consultants and contractors. The agreement among the sets of rankings for delay and cost overruns has also been tested using statistical methods. The result indicates that there is strong agreement on ranking the importance of the individual variables of delay and cost overruns between parties. From each of the three sets of rankings, the twenty most important variables of delay and the three most important variables of cost overrun are identified as critical. Based on overall results, the top five most important causes are contractor’s cash flow problems, delay in progress payments by the client, poor site supervision and management by contractor, inefficient quality control by the contractor during construction leading to rework due to errors, and contractor’s difficulties in financing the project. Out of the 20 most important delay causing variables, three are found to be common between all parties. These are delay in progress payments by the client, delay in delivery and late ordering of material, and insufficient skill of labour. Furthermore, the study reveals that all stakeholders of construction parties are deeply involved in contributing to the causes of the problems. Thus, in order to eliminate or minimize cost and time extension of office construction projects in the eThekwini Municipal area, a joint effort based on teamwork is essential through effective project planning, controlling and monitoring which boils down to putting in place best practice construction project management.

This thesis presents and evaluates how to select the data to be logged in an embedded realtime system so as to be able to give confidence that it is possible to perform an accurate identification of the fault(s) that caused any runtime errors. Several log-selection strategies were evaluated by injecting random faults into a simulated real-time system. An instrument was created to perform accurate detection and identification of these faults by evaluating log data. The instrument’s output was compared to ground truth to determine the accuracy of the instrument. Three strategies for selecting the log entries to keep in limited permanent memory were created. The strategies were evaluated using log data from the simulated real-time system. One of the log-selection strategies performed much better than the other two: it minimized processing time and stored the maximum amount of useful log data in the available storage space. / Denna uppsats illustrerar hur det blev fastställt vad som ska loggas i ett inbäddat realtidssystem för att kunna ge förtroende för att det är möjligt att utföra en korrekt identifiering av fel(en) som orsakat körningsfel. Ett antal strategier utvärderades för loggval genom att injicera slumpmässiga fel i ett simulerat realtidssystem. Ett instrument konstruerades för att utföra en korrekt upptäckt och identifiering av dessa fel genom att utvärdera loggdata. Instrumentets utdata jämfördes med ett kontrollvärde för att bestämma riktigheten av instrumentet. Tre strategier skapades för att avgöra vilka loggposter som skulle behållas i det begränsade permanenta lagringsutrymmet. Strategierna utvärderades med hjälp av loggdata från det simulerade realtidssystemet. En av strategierna för val av loggdata presterade klart bättre än de andra två: den minimerade tiden för bearbetning och lagrade maximal mängd användbar loggdata i det permanenta lagringsutrymmet.

Infrastructure projects frequently exceed their budgets in both time and cost, which often burdens the taxpayers. A significant percentage of these projects are neither complex nor unique, where the contract sum is a fraction of the contract sum of known megaprojects however has a higher percentage of cost overruns. The purpose of this study is to identify the cause, particularly the explanation behind these small and uncomplicated infrastructure projects' time and cost overruns, and to propose methods to avoid this wastage of taxpayer money. To achieve this purpose, a qualitative case study has been conducted within the scope of the Swedish Transport Administration's (Trafikverket) Investment division in the Eastern region in Uppsala, with a focus on pedestrian and bicycle paths. Empirical data has been gathered using Trafikverket's tools for deviation management, and semi-structured interviews were conducted with forecasters at Trafikverket's Investment division in Uppsala. A literature review has been made and were used to better interpret the empirical results. The identified causes are manifold but can be summarized as legal, political, and bureaucratic obstacles, communication issues, working methods, lack of experience and bad luck. The explanations for time and cost overruns can solely be attributed to the phenomenon of optimism bias, as this encompasses the forecaster's role as a decision maker in the project and the extent to which they could anticipate emerging situations. To mitigate optimism bias, the method of reference class forecasting is proposed. Furthermore, it is suggested to Trafikverket to reconsider the intervals of forecasting to be reviewed and adjusted according to the industry's way of setting forecasts on time. In conclusion, this study states that this is an important topic for future research in cost overruns in infrastructure projects. The recommendation is to focus on small and uncomplicated infrastructure projects. In addition, research must find the explanations for the causes of cost overruns before addressing the problem with appropriate methods.

Quantity Surveyors are considered as the most qualified cost specialists in the construction industry, with their experiences and skills in cost management and control as well as contract management. However, this role is not well recognized in Sweden compared to other countries such as the UK where it’s originated from. And so, the construction industry in Sweden uses other professions for the roles that were supposed to be done by quantity surveyors or cost managers. As a result, the quantity surveyors that have penetrated the Swedish construction industry, face challenges to perform their duties specifically in this case, cost control due to several circumstances. This study has looked into different contractual challenges that face quantity surveyors while performing cost control in building projects. Also, recommendations have been made to help mitigate these challenges and improve cost control in projects. In this master thesis, qualitative study has been performed where quantity surveyors were interviewed regarding cost control and the contractual challenges, they face in building construction projects. The findings were analysed with a theoretical framework and discussed together with previous research and knowledge and in this study principal – agent theory was used. The results of the study showed that poor planning, late involvement of the quantity surveyors in projects, lack of effective communication and poor contract management are the main challenges that face quantity surveyor in performing cost control in building projects. To overcome these challenges, the author suggests that there is a need of increasing awareness on the importance of having quantity surveyors and clearly establish their roles in projects, have proper communication plan, proper contract management and improve skills on quantity surveying software. / Kvantitetbesiktningsman anses vara de mest kvalificerade kostnadsspecialisterna inom byggbranschen, med sina erfarenheter och färdigheter inom kostnadsstyrning och kontroll samt kontrakthantering. Denna roll är dock inte välkänd i Sverige jämfört med andra länder som Storbritannien där den härstammar från. Och så använder byggbranschen i Sverige andra yrken för de roller som skulle göras av kvantitetsmätare eller kostnadsansvariga. Som ett resultat står de kvantitetsmätare som har trängt igenom den svenska byggbranschen inför utmaningar att utföra sina uppgifter specifikt i detta fall, kostnadskontroll på grund av flera omständigheter. Denna studie har undersökt olika avtalsmässiga utmaningar som möter kvantitetsmätare när de utför kostnadskontroll i byggprojekt. Dessutom har rekommendationer gjorts för att mildra dessa utmaningar och förbättra kostnadskontrollen i projekt. I detta examensarbete har en kvalitativ studie utförts där kvantitetbesiktningsman intervjuades angående kostnadskontroll och de kontraktsmässiga utmaningar som de står inför i byggprojekt. Resultaten analyserades med en teoretisk ram och diskuterades tillsammans med tidigare forskning och kunskap och i denna studie användes princip - agentteori. Resultaten av studien visade att dålig planering, sen involvering av kvantitetsmätarna i projekt, brist på effektiv kommunikation och dålig kontrakthantering är de viktigaste utmaningarna för kvantitetsmätaren när det gäller att utföra kostnadskontroll i byggprojekt. För att övervinna dessa utmaningar föreslår författaren att det finns ett behov av att öka medvetenheten om vikten av att ha kvantitetsmätare och tydligt fastställa sina roller i projekt, ha korrekt kommunikationsplan, korrekt kontrakthantering och förbättra färdigheterna i kvantitetsmätningsprogramvara.

The aim of my master's thesis is the design of traffic connection between newly emerging commercial and industrial area in Trnava and Nitranská street. The design of TURBO roundabout was demanded. Parking places for SAD drivers are also designed as well as the roads for pedestrians and the interchange with railway line.

Världen över sker ständiga budgetöverskridanden. Offentliga verksamheter har inte varit något undantag för dessa kostnadsöverskridanden, vilket skapar incitament till att förstå varför de uppstår. I de offentliga projekten drabbas fler än bara de projektansvariga vid budgetöverskridelser. Det är samhället i stort som får betala för arbetet eftersom det är skattefinansierade projekt. Examensarbetet utgör en fallstudie som genomfördes med syftet att skapa förståelse för varför budgetöverskridanden sker i en liten kommun. För att uppnå syftet har både sekundär- och primärdata använts i form av en djupgående dokumentanalys vilken kompletterats av intervjuer. Som fallstudieobjekt har en liten kommun använts för att samla in material. Arbetets dokumentanalys syftar till att sammanställa och jämföra tidigare utförda projekt. Intervjuer med respondenter har kompletterat och förklarat de budgetavvikelser som uppmärksammats från dokumentanalysen. En litteraturstudie av tidigare forskningens resultat möjliggjorde även för jämförelse och ökad förståelse av resultatet. Resultatet av studien är en förklaring till varför budgetöverskridanden förekommer i en liten kommun. De huvudsakliga anledningarna är ändrings-, tilläggs- och avgående arbeten (ÄTA-arbeten) i projekten vilket orsakas av olika faktorer. Dessa olika faktorer kan vara exempelvis felaktiga handlingar eller dåliga markförhållanden. ÄTA-arbeten är väldigt kostnads- och tidsdrivande vilket orsakar budgetöverskridanden. Studien visar också att kostnadsöverskridanden är mer vanligt förekommande än tidsöverskridanden / All over the world budget overruns occur. Public organisations have been no exception for these overruns, which incentivizes creating an understanding to why they occur in the first place. In the public projects there are more people than just the project managers who are affected by these overruns. This is due to the fact that the public projects are financed by tax funds which is paid by the society as a whole. The purpose of this study is to create an understanding of why budget overruns occur where a small municipality has been chosen as the case object to gather data. To achieve this purpose both primary and secondary data has been used to create a document analysis which has been complemented with interviews. The document analysis of the study aims to compile and compare previous projects in the municipality. The interviews are supposed to complement and explain different budget deviations found in the document analysis. Finally, a literature review was carried out in order to enable the comparison of the gathered data and increase the understanding of the findings. The result of the study is an explanation of why budget overruns occur in a small municipality. The primary reasons are change orders in the project plan which is caused by different factors. These different factors are faulty or vaguely formed project plans or even bad conditions of the land. Change orders are very cost and time consuming which causes budget overruns. The study also found that cost overruns are more common than time overruns.

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SANTOS, Elis Denise Lélis. Uma leitura de mão dupla: leituras e influências na poesia de João Cabral de Melo Neto. 2008. 86f. Dissertação (Mestrado em Letras) – Universidade Federal do Ceará, Departamento de Literatura, Programa de Pós-Graduação em Letras, Fortaleza-CE, 2008. / Submitted by Liliane oliveira (morena.liliane@hotmail.com) on 2012-06-26T13:06:22Z No. of bitstreams: 1 2008_DIS_EDLSANTOS.pdf: 952526 bytes, checksum: 624535c4df82c4d57e23ca5ffd70c857 (MD5) / Approved for entry into archive by Maria Josineide Góis(josineide@ufc.br) on 2012-07-23T12:27:15Z (GMT) No. of bitstreams: 1 2008_DIS_EDLSANTOS.pdf: 952526 bytes, checksum: 624535c4df82c4d57e23ca5ffd70c857 (MD5) / Made available in DSpace on 2012-07-23T12:27:15Z (GMT). No. of bitstreams: 1 2008_DIS_EDLSANTOS.pdf: 952526 bytes, checksum: 624535c4df82c4d57e23ca5ffd70c857 (MD5) Previous issue date: 2008 / The goal of our work is to investigate the influences reading from the poet Joao Cabral de Melo Neto and possible overruns through the conquest of a unique style. Contextualizaremos the production of literary and intellectual author, working with the "field", "context" and "paratopia" based on readings of The rules of art (1996), Pierre Bourdieu and The context of literary work (2001), Dominique Maingueneau, respectively. Abordaremos the influences received by the poet in the literature and other fields such as visual arts, architecture, mathematics, philosophy and the different places where resided and the travel he has done. Use the categories "influence" and "overrun", systematized by the American literary critic Harold Bloom works in The anguish of influence (1991) and A map of desleitura (2003). So with the idea of overcoming, we want to examine The work Education by stone (1966) which marks the poetry of John Cabral a more mature by their experiences with the language. First, we will see the context of production in prose and verse of the author. Then mapeamos their influences, and a third time, investigate how the poet surpassed, building an individual and own poetic. / O objetivo de nosso trabalho é investigar as influências de leitura do poeta João Cabral de Melo Neto e a possível superação através da conquista de um estilo próprio. Contextualizaremos a produção literária e intelectual do autor, trabalhando com as categorias de “campo”, “contexto” e “paratopia”, com base nas leituras de As regras da arte (1996), de Pierre Bourdieu e O contexto da obra literária (2001), de Dominique Maingueneau, respectivamente. Abordaremos as influências recebidas pelo poeta na literatura e de outros campos como o das artes plásticas, da arquitetura, da matemática, da filosofia e dos diferentes lugares em que residiu e das viagens que realizou. Utilizaremos as categorias “influência” e “superação”, sistematizadas pelo crítico literário americano Harold Bloom nas obras A angústia da influência (1991) e Um mapa da desleitura (2003). Assim, com a idéia de superação, pretendemos analisar a obra A educação pela pedra (1966) que marca a poética de um João Cabral mais amadurecido por suas experiências com a linguagem. Primeiro, veremos o contexto da produção em prosa e verso do autor. Em seguida, mapearemos suas influências e, em um terceiro momento, investigaremos como o poeta as superou , construindo uma poética própria e individual.