The developer as low-emission supply chain initiator: A multiple-case study examining the supply-chain configuration and the developer’s role in implementing low-emission construction practices in Dutch inner-city high-rise projects.

The construction industry is responsible for the emitting carbon, nitrogen, and particulate matter, which is harmful to the environment and contributes to global warming. Municipalities in the Netherlands plan to reduce emissions in inner-city developments to zero before 2030, for which a transformation of the already...

Tenders in the Dutch construction industry: The impact of client decisions on the tender competition

As a result of decreasing competition within the procurement of large construction projects in the Dutch construction sector, the need arises to understand the mechanisms behind the competition. Especially how decisions by clients on the procurement of construction projects impact the number of competitors. When this is understood, clients can...

Improving the application of two-phase delivery: The Holy Grail?

This study aims to evaluate the effects of the two-phase delivery method, focusing specifically on its potential to address integrated project delivery challenges, and to propose improvements to the use of the delivery model. Using two Rijkswaterstaat-projects as a case study, the research question seeks to enhance the use of the two-phase...

From BIM to digital twins: towards a successful data exchange through public procurement: a case study research within the Dutch building industry

The construction sector is experiencing a fundamental shift towards greater digitization. Building information modeling (BIM), augmented and virtual reality (AR/VR), the internet of things (IoT), Artificial Intelligence (AI), and Digital twins are all becoming more prevalent in the architecture, engineering, and construction (AEC) industry....

Insights into the design of the two-phase deliver model in the design phase of infrastructure projects

Currently, the infrastructure industry is in transformation and moving towards new project delivery approaches. Aiming to improve the predictability of projects and due to a growing desire for collaboration between clients and contractors, the two-phase model has made its entrance in the industry and has been gaining popularity.<br/>During the...

Implementation fidelity of circularity in publicly tendered civil engineering projects

With the current urgency to become more circular, procurement presents the primary method to deliver the circular policy ambition by purchasing circular products and stimulating circularity in the market. In the building and infrastructure sector, civil engineering projects offer unique opportunities for circularity. This research presents an...

Buying with impact: Stimulating sustainable public procurement in the construction sector through collaborative practices

Public organisations are shifting their focus towards the implementation of sustainability into their projects through sustainable public procurement, but recent studies indicated that the implementation is still lacking. Sustainable public procurement is only implemented in around 10% of the Dutch public procurement tenders (Yu et al. 2020)....

Buyer groups as catalyst for sustainable procurement: A guideline for (semi-) public clients to implement buyer groups in the pre-procurement process of construction projects to minimise carbon emissions and maximise circularity

<b>Background: </b>The construction sector has a 10-year time span to become 50% circular and to reduce carbon emissions by 49% compared to 1990. This time span is even shorter for public clients, as the Dutch government functions as launching customer, and strives make its own...

Green Public Procurement in the Dutch Construction Sector: A qualitative research on the inclusion of 
environmental requirements 
in procurement of construction projects

One way to reduce the environmental impact of the construction sector is the inclusion of environmental requirements in the procurement of construction projects, also called Green Public Procurement (GPP). This thesis first analysed the current inclusion of environmental requirements in the invitation to bid, bid and assessment of the bid....

Public Procurement For Innovation: Optimising the preparation phase of the innovation partnership and competitive dialogue procedure for Dutch public authorities procuring for innovation in the Physical domain

The possibilities public procurement offers regarding the stimulation of innovation for the benefit of economic growth and the competitiveness of markets have been increasingly receiving attention over the past two decades. In 2014 a long awaited update of the European directive governing procurement procedures was published. Among these...

Setting up the Innovation Partnership: Designing a guide for project managers for Dutch contracting authorities with a demand for construction-related innovation

An exploratory research into the application of the Value Added: The current application and possible optimisations of the Value Added in the Dutch construction industry

Bouwen aan de Circulaire Economie: "Een betere wereld begint bij het stellen van een betere vraag"

Since the beginning of industrial evolution, industrialization has created a dominating unilateral production- and consumption model. This one-way model of production, also described as a linear model, encompasses a ‘take, make, waste’ pattern in which natural resources are extracted from the Earth, manufactured into goods, used and eventually...