Konstantinos Kirytopoulos

Konstantinos Kirytopoulos
National Technical University of Athens | NTUA · School of Mechanical Engineering

Dr Eng., Dipl. Eng., PMP

About

122
Publications
38,550
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1,539
Citations
Citations since 2016
56 Research Items
1140 Citations
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Introduction
I am based in Athens, Greece and work as an Associate Professor of Project and Risk Management at the National Technical University of Athens. I enjoy working and conducting research with my colleagues in the fields of project management and risk management. My main goal is to diffuse Project and Risk Management disciplines, as well as inspire people to use them, not only in order to achieve business but also their personal goals.

Publications

Publications (122)
Article
Tunnels have a unique driving environment; thus, a small incident in a tunnel may result in severe consequences and a high probability of secondary crashes. Fortunately, studies have found that adopting safe driving behavior in a tunnel minimizes the severe outcomes of an incident. Therefore, implementing driver-oriented safety policies and conduct...
Article
Companies face new challenges needing to find ways to stand out from the competitors. All companies face new projects, which need to be managed assertively and faster, launching new products on the market ahead of competitors. This strategy requires enormous dexterity and agility within teams, which are increasingly multifaceted, multidisciplinary,...
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Projects have grown into more dynamic and complex endeavors, and agile project management should be considered as a way to deal with them. This is a novel study in this field, because the implementation of agile project management in the automotive industry was not explored so far, thus, this work intended to fill this gap, by identifying barriers...
Article
Selecting fires safety measures for road tunnels relies mainly on strict regulatory requirements. However, the choice should also be based on many different criteria and ranking of alternatives should take place. Existing methods exhibit lack in dealing rigorously with measures’ selection amongst different alternatives. This paper contributes to th...
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The lockdown and social distancing policies to reduce COVID-19 spread and perceived safety threats of COVID-19 significantly affected people’s travel behavior. Greece has been suffering from the COVID-19 pandemic, and people’s mobility behavior has been greatly affected. This study aims at: (1) exploring the variations in individuals’ trip frequenc...
Article
Full-text available
The events industry is a project-based industry where sustainable development has been of ever-increasing interest over the last decade. In this regard, the importance of managing risks and delivering quality outcomes in corporate events and the events industry in general cannot be overstated. This paper aims to contribute to the enhancement of pro...
Chapter
Developing and delivering a project to an agreed schedule is fundamentally what project managers do. There is still an ongoing debate about schedule delays. This research investigates the development of schedules through semi-structured in-depth interviews. The findings reveal that half of the respondents believe that delays reported in the media a...
Article
Purpose This study aims to investigate the underlying factors that give rise to the set of sustainability indicators which are used for the implementation of sustainable construction projects and eventually the production of sustainable built assets. Design/methodology/approach To accomplish the purpose of this research, an online questionnaire sur...
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Even though recent studies designate that sustainability should be integrated in project management, this integration remains a complex issue. Hence, there is a need to develop a new approach that would assess the organizational sustainability and reveal to what extent sustainable project management practices are effective. The aim of this research...
Article
Sustainable project management practices constantly gain importance over the last years. Relevant indicators constitute a means of leading modern projects to sustainability. Hence, it is necessary to identify a set of sustainability indicators that affect the construction process. The aim of this research is to explore and rank the relative importa...
Article
Safety and security in road and railway tunnels are of utmost importance. The concern about safety of road tunnels has increased in recent years, mainly due to their rapid growth and some disastrous accidents that have occurred in the last two decades. Despite renewed prescriptive requirements, there are significant deficiencies in managing complex...
Article
Purpose Despite the fact that extensive studies on public-private partnerships have focused on risk identification and classification, research still lacks concentration on studying the latent structure of risks in build operate transfer (BOT) transportation projects, especially in developing countries. The research was carried out in Vietnam and t...
Chapter
Accident rates appear to be slightly lower in tunnels than on open road, however an accident in a tunnel may have much greater impact; especially in the event of fire, where the enclosed space hinders the dissipation of smoke and poses difficulty in ensuring safe escape route of the tunnel users. In order to assess the risk of such events that may...
Article
Purpose The purpose of this research is to identify the most impactful delay risks in Australian construction projects, including the associations amongst those risks as well as the project phases in which they are most likely present. The correlation between project and organisational characteristics with the impact of delay risks was also studied...
Article
Sustainability concepts showcase significant value in construction projects. The discipline of project management is also integrating sustainability issues into its approaches. Under this notion, this study explores the integration of sustainability indicators into project management practices of construction projects. Current literature discloses...
Article
Fire incidents are considered serious events for road tunnel safety because they can evolve into catastrophic accidents. Bearing in mind that tunnels constitute critical infrastructure elements of road systems, risk assessment has been employed to prepare tunnels to deal with such incidents. However, if an incident occurs, an adequate response is a...
Article
Full-text available
Although tunnels provide roads with numerous advantages, they also include significant risks. Especially, fire accidents are the biggest threats. Nowadays, risk assessment has the predominant role for managing tunnel fire safety and users are in the centre of attention. However, existing methods exhibit lack in treating uncertainty stemming from us...
Article
Researchers have not studied the human side of project managers thoroughly. Decision-making mechanisms lie not only in technocratic knowledge but also in practitioners’ inner cultures and personal lifestyles. Highlighting the human (f)actor behind the strategic decisions made in projects reveals a new path for analyzing project managers. This artic...
Article
Purpose The Built Operate Transfer (BOT) model has been increasingly used in transportation investments in Vietnam. However, there is still an inadequacy of risk management applications in these projects and lack of research in this area. The study aims to improve the success of projects implemented through the BOT model in Vietnam. Design/methodo...
Article
With a view to enhance road network’s safety, it is crucial to focus primarily on its critical infrastructures, one part of which is tunnels. Fire safety of tunnels concerned intensely the public opinion after the disastrous trans-Alpine accidents in Europe in the late 1990s. Therefore, risk assessment was officially introduced for ensuring the tun...
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Isomorphic pressures are thought to stimulate change and adoption of best practice in risk management (RM). Although this certainly occurs in most industries, it is not occurring in the construction industry. This research investigates institutional isomorphism in the Australian construction industry. In-depth interviews and surveys about the use o...
Article
The multidimensional problems that archaeological sites and cultural heritage assets face demand effective multiple criteria decision-making, regarding risk impact identification and evaluation. There is a great array of risks affecting cultural heritage sites and assets nowadays, including environmental and manmade factors. Risk assessment towards...
Article
Purpose Adverse situations negatively impact project stakeholders’ engagement. Past research has sporadically investigated adverse situations affecting stakeholder engagement but lacks a thorough empirical investigation. The paper aims to discuss this issue. Design/methodology/approach A web survey was designed to address the knowledge gap of the...
Article
Purpose Despite the advent of sophisticated control methods, there are still significant issues regarding late delivery of information technology projects. The purpose of this paper is to investigate the common causes of scheduling problems specifically in the information technology projects context. Design/methodology/approach Through a quantitat...
Article
Purpose The purpose of this paper is to systematically develop a delay risk terminology and taxonomy. This research also explores two external and internal dimensions of the taxonomy to determine how much the taxonomy as a whole or combinations of its elements are generalisable. Design/methodology/approach Using mixed methods research, this syst...
Article
Despite the existence of previous studies on risks in Public Private Partnership transportation projects, there is still absence of an overall risk catalogue, common terminology and consistent risk structure. This research provides comprehensive risk inventory, harmonious language and taxonomy for risk classification. A systematic literature review...
Article
Fire is the foremost critical event for road tunnels' safety. Therefore, the European Commission introduced the Directive 2004/54/EC for enhancing tunnels' safety since they constitute a key element of the Trans-European Road Network. The Directive has established a common ground for tunnels' safety evaluation providing certain minimum requirements...
Article
Developing and delivering a project to an agreed schedule is fundamentally what project managers do. There is still an ongoing debate about schedule delays. This research investigates the development of schedules through semi-structured in-depth interviews. The findings reveal that half of the respondents believe that delays reported in the media a...
Article
Stakeholder Engagement is considered a salient and ongoing challenge in globally distributed Information Communication Technology (ICT) Projects. This paper explores multifaceted aspects of stakeholder engagement from an ICT Vendor perspective using the empirical case study method. Qualitative data was gathered from two case studies from different...
Chapter
The importance of knowledge transfer or mentoring as a way to pass tacit knowledge (experience) across generations is discussed widely. This tends to relies on the proximity and mutual exchange within a project management (PM) context. The sender/receiver approaches used to the transfer learning from one project to another is inhibited by the conte...
Article
Fire safety is an important aspect of underground road tunnels’ operation. Undertaking high traffic volumes, they are one of the most critical infrastructure for the daily operation of modern urban networks. Aiming to guarantee their safety, risk assessment has been established as a valuable tool. However, the deterministic approach of existing met...
Article
This study analyses the practical application of risk management tools by project managers in their construction projects. Using a grounded theory approach we applied purposive sampling to select 25 Australian construction project managers to identify tools utilised to analyse risk and tool preferences. Themes were developed though analysis of the...
Article
Exploring aspects of how innovative methods can truly attain a sustainable society is necessary for the future of our planet. This study focuses on serious games, and how users can increase their understanding of sustainability issues and their familiarity with sustainable development strategies. “Users” of serious games consist of all possible tar...
Conference Paper
Full-text available
Sustainable development and sustainability assessment is one of the most important challenges of our time. On the other hand, game -based learning (GBL) is proven to increase soft skills, such as critical thinking, creative problem solving and teamwork, as well as to improve cognitive development, learning retention and social learning, which are o...
Article
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Claims are an unavoidable burden for every construction project. They stem from risks that have unfortunately been realized in a project and how they will be pursued is up to company strategy, operational particularities and managers’ skills and experience. Claims, in general, have an adverse effect on a project's supply chain by compromising actor...
Article
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Stress is a recognised feature of the project managers’ life. Projects are becoming more complex with the uncertainty in the system contributing to the lack of control and added stress. This study explores a microcosm of 25 project managers in the South Australian construction industry, their perceived level of uncertainty and stress. The project m...
Article
In a bidding process, the bidder must define and evaluate potential offers in order to propose the most suitable one to the potential customer. Proposing attractive but also realistic offers to various potential customers is a key factor for the bidder to stay competitive. In order to achieve this, the bidder needs to be very sure about the technic...
Chapter
The engineering and construction companies working in the oil and gas industry treat lessons learnt as secrets of the trade. Therefore, they rarely publish relevant registers for professional or educational purposes. Aim of this research is the investigation of current issues in oil and gas industry through capitalising on experience coming from pr...
Article
Full-text available
Purpose Public sector projects still fail to meet delivery expectations, and the lack of significant project management experience in the Australian public service (APS) has been identified as a contributing factor. The purpose of this paper is to investigate the importance of competencies required for delivering public sector projects, as well as...
Article
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Purpose One of the major challenges for any project is to prepare and develop an achievable baseline schedule and thus set the project up for success, rather than failure. The purpose of this paper is to explore and investigate research outputs in one of the major causes, optimism bias, to identify problems with developing baseline schedules and an...
Article
With a view to enhance the safety of the road transport system, it is crucial to focus primarily on its key elements, one of which is tunnels. The significance of tunnels is based on an endogenous problem, which is the severity of accidents that may occur. Several studies and aftermaths from disastrous accidents have shown that correct users’ behav...
Chapter
Nowadays, in customer/supplier relationship, suppliers have to define and evaluate some offers based on customers’ requirements and company’s skills. This offer definition implies more and more some design activities for both technical solution and its delivery process. In the context of Engineering-To-Order, design and engineering activities are m...
Conference Paper
Globally distributed Information and Communication Technology (ICT)projects, typically engage multistakeholders coming from diverse multicultural backgrounds, with varied interests and collaborating across remote geographical locations using different technologies. This is viewed as a significant challenge and of strategic importance in the face of...
Article
Project complexity has been extensively explored in the literature because of its contribution towards the failure of major projects in terms of cost and time overruns. Focusing on the interface of Project Complexity and Interdependency Modelling of Project Risks, we propose a new process that aids capturing interdependency between project complexi...
Article
In today's rapidly evolving management world, the scheduling of multiple projects where each one's execution depends on another's successful completion, is of great importance. This paper presents a hybrid meta-heuristic algorithm composed of an external Genetic Algorithm (GA) and an encapsulated Ant Colony Optimization (ACO) algorithm for the flex...
Article
Advancements in communications technology, coupled with the remarkable difference of labour costs among countries, has fostered the delivery of projects through virtual teams. The purpose of this research is the development of an evaluation tool that can assist a project manager assess the operation of a virtual team. The proposed tool, mainly base...
Article
The modern supply chains are based on extended organization networks across different businesses and Industries. The uncertainty in these networks becomes a great concern for the management of the chain in a holistic approach. Several studies provide a wide list of risk management strategies and the general strategies for risk management in the sup...
Article
The paper deals with a class of problems often met in modern project management under the term “resource leveling optimization problems”. The problems of this kind refer to the optimal allocation of available resources in a candidate project and have emerged, as the result of the even increasing needs of project managers in facing project complexit...
Article
The number of road tunnels in Europe has increased rapidly over the last years. Nevertheless, this increasing number is raising upfront an endogenous problem, which is the severity of accidents that may occur. After the spate of tunnel fires in Europe over the past decade, the European Commission embarked upon a major review of road tunnel safety a...
Article
The paper is focusing on road tunnel safety and builds upon the Directive 2004/54/EC launched by the European Commission; the latter sets basic requirements and suggests the implementation of risk assessment in several tunnel cases apart from technical measures imposed on the basis of tunnel structural and operational characteristics. Since the EU...
Article
Most of the times in emergency situations, individuals need to act decisively within tight time schedules having no or limited information. In this paper we propose the exploration of a real time data Decision Support System (DSS) for emergency management. The proposed conceptual construct is based on the idea that a bridge should be built between...
Article
Full-text available
In practice most organisational decisions are made by groups that bring into the problem multiple perspectives, both complementary and contradictory. When having a group of decision makers, usually individuals’ preferences are either led to consensus or are aggregated with the use of some function like the median, the arithmetic or geometric mean....
Conference Paper
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A holistic approach is proposed for defining the resource constrained project scheduling problem (RCPSP). The paper's aim is to give a formulation of the project scheduling problem where all deterministic aspects that have been previously explored in the relevant literature are covered. Our goal is to provide a way to model and solve project schedu...
Article
ProMES (ProMES software is freely provided for academic purposes and can be downloaded from: simor.mech.ntua.gr/Kirytopoulos/promes.asp) fills the gap of educational software in training on basic tools of project management. It offers aid to trainees in project management positions or courses to understand how CPM, PERT, and RACI are used and enhan...
Conference Paper
A great increase has been noticed in the number of road tunnels in Europe over the last decades. This can be attributed to the improvement of tunnel construction technology which has rendered tunnels a cost effective solution to connect steep mountainous regions and traverse urban areas. However, the increasing number of these infrastructures is a...
Article
The main objective of project risk management is to "increase the probability and impact of positive events, and decrease the probability and impact of negative events in the project" (Project Management Institute, 2012). In order to assess a risk's probability of occurrence, statistical data, expert judgment and/or modeling predictions can be used...
Article
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After the tremendous accidents in European road tunnels over the past decade, many risk assessment methods have been proposed worldwide, most of them based on Quantitative Risk Assessment (QRA). Although QRAs are helpful to address physical aspects and facilities of tunnels, current approaches in the road tunnel field have limitations to model orga...
Article
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Features variety, variations among organisations’ needs and the plethora of powerful project and portfolio management (PPM) information systems in the market, make the selection process among various PPM information systems a complicated process. The large number of the evaluation criteria involved during the decision aggravates the problem. This p...
Article
The Analytical Network Process (ANP) is a multicriteria decision analysis method that has been widely used the last few years to support decision making. Primary aim of this paper is to expose in detail the mathematics of the method in order to explain the mechanics of its steps and provide an exact algorithm that will give the opportunity to easil...
Conference Paper
Full-text available
This paper presents a new approach for the Time Constraint Project Scheduling Problem (TCPSP). A two stage heuristic algorithm was developed for this problem. During the first stage a genetic algorithm using as fitness function, a function composition of max resource usage and the differences between actual and desirable resource usage, is executed...
Article
Analytic network process is a multiple criteria decision analysis (MCDA) method that aids decision makers to choose among a number of possible alternatives or prioritize the criteria for making a decision in terms of importance. It handles both qualitative and quantitative criteria, that are compared in pairs, in order to forge a best compromise an...
Conference Paper
Full-text available
The interest in the present work is focused on the resource leveling problem in the area of project scheduling. Since the problem’s mathematical formulation, there have been many attempts to effectively reach the optimum solution that minimizes resource utilization. Most of them employ heuristics for navigating through the feasible solutions. The b...
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Purpose The purpose of this paper is to present the requirements for assuring the managerial capability of organisations implementing projects of public interest. It presents the case of Greece, and the family of newly developed set of standards concerning the managerial maturity of public organisations and the management of projects funded by Euro...
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This study proposes a new software tool, the ANP SOLVER that implements the ANP method. The analytic network process is a MCDA technique based on relative measurement on absolute scales of both tangible and intangible criteria. Although today there are plenty of software tools supporting decision makers, the ANP method is not supported in the major...
Article
The aim of this paper is to provide an effective method for schedule reengineering and optimisation through knowledge acquisition and corporate memory creation. The core problem of schedule development is about defining the right activities for inclusion in the schedule, their duration and the right dependencies among project activities. It is show...
Conference Paper
The road tunnels safety is an emergent property of the whole tunnel system, thus, a systemic accident model can better conceptualize the risk picture in these infrastructures. In this paper, the Systems Theoretic Accident Model and Processes (STAMP) which has been recently proposed by Leveson is introduced in the road tunnels hazard analysis proces...
Article
This paper presents a newly developed project monitoring and controlling method based on the synergy between project risk management (PRM) and earned value management (EVM). Its fundamental attribute is the introduction of the criticality index in EVM, which effectively models a dynamic aspect of the project frequently ignored in practice that is t...
Article
The technological advancements of the new network economy are changing the marketplace and impelling changes in strategic alliances and partnership structures within the e-supply chain (e-SC). E-SC managers need to consider multiple performance characteristics and trade-offs between conflicting tangible and intangible factors in order to evaluate p...
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Full-text available
Tunnels have improved the connection of regions within the European Commission (EC) and have been used lately as a catalyst for economic development of previously isolated regions. However, the increasing number of these important infrastructures is raising upfront an endogenous problem, which is the severity of accidents that may occur. These risk...
Article
Purpose The integration of management systems is a common need nowadays, thus several paradigms exist in the bibliography for relevant efforts. However, the basic effort seems to be mainly at the direction of aligning processes and documents, taking into account only one of four typical views of organisations' modelling (the function view). Since t...
Conference Paper
Full-text available
Tunnels are regarded as one of the most important infrastructures in Europe, as they may improve the connection of regions and aid economic development through facilitating the transportation of people and goods. In order to achieve a minimum acceptable level of safety, the EC issued Directive 2004/54/EC, which describes specific safety measures th...