Ergo Pikas

Ergo Pikas
Tallinn University of Technology | TTU · Department of Civil Engineering and Architecture

Doctor of Science (Technology)

About

54
Publications
26,841
Reads
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1,065
Citations
Additional affiliations
December 2017 - December 2019
Technical University of Denmark
Position
  • PostDoc Position
September 2014 - January 2018
Tallinn University of Technology
Position
  • PhD Student
March 2014 - January 2018
Aalto University
Position
  • PhD Student

Publications

Publications (54)
Article
Full-text available
The coronavirus outbreak forced design companies to consider how the flow of information and work processes could be managed in the context of remote design work. This research aims to put a digital Last Planner System (LPS) whiteboard to the test in support of remote collaborative design process planning and control and identify its benefits and c...
Article
Full-text available
It is generally acknowledged that good-quality design is a prerequisite for good quality and productive construction work. One proposed measure to improve the quality of construction has been contractors’ involvement in the design phase, and this phenomenon has been studied by several researchers. However, such approaches have not adequately addres...
Chapter
BIM brings a paradigm change to the construction industry. Implementing building information modelling technology requires new ways of thinking and working. In this chapter, we explain what BIM is, how we work with BIM, and what value working with BIM provides, and we offer an overview of essential BIM terminology. First, we outline the basic conce...
Conference Paper
Full-text available
Motivated by the European Green Deal framework, an ambitious 30-years long renovation strategy has been established in Estonia. This renovation strategy requires a substantial increase in the annual renovation capacity. New capabilities in terms of industrialization and digitalization of sustainable renovation processes need to be promoted. This ex...
Conference Paper
Full-text available
In the era of customer-driven and digitalized businesses, the construction industry has still demonstrated inadequate performance development. This research aims to disentangle the industry's current problems and present justified paths toward sustainable improvement. Following the design science research approach, the paper develops a conceptual f...
Conference Paper
Full-text available
Vertical logistics systems are important for enhancing production performance in high-rise buildings (HRBs). However, researchers studying vertical logistics have focused on examining the flow of individual resources in isolation. Only a few studies adopt a holistic approach to optimizing the flow of resources. For example, research on the combined...
Article
Full-text available
Building design and design management practices are beset by many problems to which satisfactory solutions have not yet emerged. The recognition of the Aristotelian legacy on design theorization has given rise to the proposition that the development of a new design concept that integrates the technical and social aspects of design might provide a g...
Article
Full-text available
Purpose Most complex engineering projects encounter unexpected events through their life cycle. These are traditionally attributed to inaccurate foresight and poor planning. Outlining a nonanticipatory alternate, the authors seek to explain the ability to rebound from unexpected events, without foresight, using resilient systems theory. This paper...
Article
Full-text available
Lean construction methods have demonstrated potential to improve construction productivity. For example, the location-based management system and the last planner system have increased the reliability of planning and control in construction production. However, these benefits are often reduced because of inaccurate manual data collection. To allevi...
Article
Full-text available
In many universities, a continuum and a variety of startup pre-accelerators, startup accelerators, entrepreneurs, investors, and other support actors are in place to facilitate entrepreneurship and that student startups emerge. In this paper, we describe how the entrepreneurial ecosystem in and around Aalto University works. We describe how Aalto’s...
Chapter
Full-text available
In many universities, a continuum and a variety of startup pre-accelerators, startup accelerators; entrepreneurs, investors, and other support actors, are in place to facilitate entrepreneurship and that student startups emerge. In this paper, we describe how the entrepreneurial ecosystem in and Aalto University works. We describe how Aalto’s stude...
Article
Full-text available
Low trust levels among project parties are generally believed to harm construction project performance, but the role of trust in the context of information flow and solving design quality problems (DQP) remains understudied. Whereas lean design management research highlights the importance of managing information flow, few studies have investigated...
Article
Full-text available
The concept of a “digital twin” as a model for data-driven management and control of physical systems has emerged over the past decade in the domains of manufacturing, production, and operations. In the context of buildings and civil infrastructure, the notion of a digital twin remains ill-defined, with little or no consensus among researchers and...
Conference Paper
Full-text available
The method of A3, which originated in the framework of the Toyota Production System, is used for collaborative problem solving, status reporting, and presenting proposals. It is now widely used as a part of the implementation of lean in different industries. In turn, the Canvas method was initially developed, through academic research, for generati...
Article
Full-text available
The aim of this case study, underpinned by participative action research and design science research methodologies, is to show how design and design management practices can be improved based on a new conception of design activity and lean design management. First, problems related to design and design project management are identified using a tria...
Article
Full-text available
While the form of building construction delivery known as Integrated Design-Build (or Integrated Project Delivery) is necessary for handling the complexity of modern projects, it raises up a host of problems due to the amount and variety of stakeholders that are brought together to co-design. Namely, the difficulty in forming a shared mental model...
Thesis
Full-text available
A number of well-recognized problems, many arising from the inadequate organization of design processes, beset the building design and design management. Remedies have been attempted but no effective solutions have emerged. The root problem could be the prevailing view of incompatibility between the technical, subject to causality, and social, subj...
Article
Full-text available
The Toyota production system, on which lean production is based, emerged as the unplanned result of unrelated improvements and innovations. Although the related practices and principles are now widely reported, the theories and philosophical premises underlying lean production are not commonly known. This also applies to lean construction, which, a...
Conference Paper
Full-text available
Design management profession has probably got the least attention in the construction industry. One reason could be the lack of explicit conceptualizations about its nature, subject matter and principles. In this article, a conceptual design management framework is proposed on the premise that design management is the management of a structured sys...
Conference Paper
Full-text available
One major reason for the poor performance of construction project delivery is related to the 'ill'-performed project definition stage. The emphasis on rational decision-making and methods have stifled the creativity important to problem structuring and solution generation. Problem is in the poor conceptualization of the project definition stage in...
Article
This study provides information about development of cost-effective facade solutions during the last 5 years and illustrates the importance of different variables such as accuracy of window models, construction costs, energy prices, interest rate and inflation. The cost-effective South, East and West facade solutions were triple windows with window...
Conference Paper
Full-text available
Since Aristotle, it has repeatedly been stressed that for engaging in a meaningful discussion or debate, the discussion parties must share, besides a language, also knowledge, information, values and goals. Although the wide variety of terms, concepts and theoretical approaches in the literature, the discussion about the phenomenon of collective hu...
Conference Paper
Full-text available
Since Aristotle, it has repeatedly been stressed that for engaging in meaningful discussion or debate, the discussion parties must share, besides a language, also knowledge, information, values and goals. What do we know today about this issue? How can that knowledge be used and advanced? The purpose of this paper is to consolidate our understandin...
Conference Paper
Full-text available
The need to manage and coordinate design has been recognized in different industries, including construction. However, teams need to have a shared language, which requires a design framework or in other words, ontology, providing terminology, principles, and methods. Systems thinking approaches have been used in a variety of design ontologies, here...
Conference Paper
Full-text available
The purpose of this article is to understand the academic landscape on collaboration in design, its characteristics and related concepts for promoting collaboration within in the project based production systems. We aim to answer to the following three questions: How to define collaboration in design and why individuals need to collaborate during d...
Article
Full-text available
The “Big Room” in construction refers to a large facility supporting the colocation of the entire project team, where some of the critical problems such as delays in decision-making, problems in communication, disparity in design iterations are eliminated, and trust is increased. However, one of the most demanding aspects of this concept is the alm...
Conference Paper
Full-text available
Production management and control in construction has not been addressed/updated ever since the introduction of Critical Path Method and the Last Planner® system. The predominant outside-in control logic and a fragmented and deep supply chain in construction significantly affect the efficiency over a lifecycle. In a construction project, a large nu...
Article
As a part of the 2030 energy and climate policy discussion, the Estonian energy roadmap ENMAK 2030+ is being developed to set optimal national targets for 2030. Developing such a national roadmap requires solid evidence of which scenarios with varying ambition can be developed. This study looked at economic benefits, including tax revenue, job gene...
Article
Full-text available
Energy and investment intensity of integrated renovation variants were studied to determine cost optimal energy savings by 2030 as a part of new Estonian energy roadmap preparation. For major residential and non-residential building types, 3–4 renovation variants with different ambition were defined, all including the installation of adequate venti...
Article
Full-text available
European Union (EU) has established directives and guidelines that soon require building industry to comply with nearly zero energy building (nZEB) targets in their daily work. This will necessitate new design solutions based on new knowledge. At a high performance level, it is a multifaceted problem, while solutions must be both energy and cost ef...
Article
Cost optimal and as energy efficient as possible facade solutions, including window properties, external wall insulation, window-to-wall ratio and external shading were determined with energy and daylight simulations in the cold climate of Estonia. Heating dominated in the energy balance and therefore windows with higher number of panes and low emi...
Article
As building information modeling (BIM) becomes increasingly standard practice in the construction industry, universities providing construction engineering and management education seek to incorporate BIM concepts and skills in their degree programs. The goal of this research was to compile a framework for BIM education that lays out the necessary...
Article
The construction industry needs graduate engineers with knowledge and skills in building information modeling (BIM). A detailed set of 39 topics required for BIM competence in construction management, together with specific targets for competency in each topic, was recently compiled on the basis of research into the needs of industry. However, only...
Thesis
Full-text available
In the last several years building information modeling (BIM) has caught more and more attention by public and private organizations. Many national construction industries worldwide are increasingly demanding the use of BIM, often together with complimentary novel management methods, for delivery of their construction projects. Thus, construction c...
Article
Full-text available
Construction work is performed at the end of a chain of decisions made by the individuals involved in planning the work at increasingly detailed levels of resolution. At each step planners make decisions based on their perception of the state of readiness, or maturity, of the work, but there is always, by definition, some residual uncertainty. Ther...
Conference Paper
Full-text available
In this paper, we explore how BIM functionalities together with novel management concepts and methods have been utilized in thirteen hospital projects in the United States and the United Kingdom. Secondary data collection and analysis were used as the method. Initial findings indicate that the utilization of BIM enables a holistic view of project d...
Article
Full-text available
In this paper, we explore how BIM functionalities together with novel management concepts and methods have been utilized in thirteen hospital projects in the United States and the United Kingdom. Secondary data collection and analysis were used as the method. Initial findings indicate that the utilization of BIM enables a holistic view of project d...

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Cited By

Projects

Projects (5)
Project
Research results on construction management topics, including project management, lean construction and production management and project planning.
Project
The BENEDICT (BIM-enabled Learning Environment for Digital Construction) project is aimed at leveraging the emerging possibilities of Building Information Modelling (BIM) to enhance the education of Real Estate and Construction professionals by developing an innovative, BIM-enabled Learning Environment which offers more realistic, immersive and integrated learning experiences. More information at https://benedictproject.eu/
Project
In this project, various aspects of building information modelling have been studied.