Bron: Mohamed, J. 2021. The Circular Procurement Tool. Procurement method to stimulate circular
facade systems in mid-rise residential buildings in the Netherlands. TU Delft& Gemeente Amsterdam.
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Artikel
Flyer - De circulaire inkooptool
Deze flyer - beschikbaar in het Nederlands en Engels - geeft een overzicht van de circulaire inkooptool: waarom is de tool ontwikkeld, wat houdt de tool in, wie kan de tool gebruiken, wat is er nodig om de tool verder te ontwikelen en wat zijn mogelijke toepasssingen van de tool?
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Artikel
MSc Thesis TU Delft - The Circular Procurement Tool: A procurement method to stimulate circular facade systems in mid-rise residential buildings in the Netherlands
The ambition of the Netherlands is to have a fully circular economy by 2050.One of the steps to achieve this ambition is that in 2030 the tenders should have circular ambitions at all governmental levels. However, at the moment, there are insufficient tools for the municipality to make the practical implications of these circular ambitions explicit. In a studied case-project in Reigersbos (Amsterdam), where circular facades are being applied, a selection procedure has taken place to unify different parties that are willing and able to enhance the circularity of the project. Such a tender process is complex and time-consuming. A tool that streamlines circular requirements can help the selection procedure for the parties involved early in the process and can actively keep track of realisation of the set requirements during the process. Therefore, the thesis aims to develop acircular tendering tool that actively helps the municipality and project developer set circular ambitions and criteria for an arbitrary project location. The tool’s concept is to categorize and assess the individual benefits of the circular measures in the chosen products, phases and parties, based on the principle of the circular economy. By utilizing this tool, it becomes possible to compare and select a facade system for the project. Furthermore, it also keeps track of the process by monitoring the set goals during the project for necessary adjustments and allows evaluating of the goals in the end.
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Artikel
Samenvatting onderzoeksrapport 'The Circular Procurement Tool'
Nederland is een van de vijf Europese landen met het meeste bouw- en sloopafval per jaar (JRC European Commission, 2011). Nederland streeft ernaar om in 2050 een circulaire economie te ontwikkelen. De bouwsector, de grootste gebruiker van energie en natuurlijke hulpbronnen, is verantwoordelijk voor 36,4 % van de totale afvalproductie, voor meer dan 35% van het wereldwijde eindenergiegebruik en voor bijna 40% van de energie gerelateerde CO2-uitstoot (Eurostat Europese Commissie, 2017).
Bron: Mohamed, J. 2021. The Circular Procurement Tool. Procurement method to stimulate circular
facade systems in mid-rise residential buildings in the Netherlands. TU Delft& Gemeente Amsterdam. -
Artikel
Aansluitdocument circulair inkoopproces
Dit artikel omschrijft hoe het concept van “De circulaire inkooptool” voor circulaire gevels met de “Tender Tool Circulaire gevels” door Frontwise Facades gecombineerd kan worden.
“De circulaire inkooptool” is een methode gericht om de circulariteit van een gebouw te stimuleren door middel van het inkoopproces. Want hoe meer er circulair ingekocht wordt, hoe meer partijen circulair zullen ontwerpen. In dit document zal duidelijk worden gemaakt op welke manier de tool van “Tender Tool Circulariteit gevels“ Frontwise Facades en “De circulaire inkooptool” met elkaar verweven kunnen worden om een nóg krachtigere methode op te zetten. Beide tools zijn namelijk bedacht voor bevordering van de samenwerking tussen de partijen waarbij “De circulair inkooptool” is bedacht aan de hand van gesprekken met Frontwise Facades over verdere ontwikkeling van “Tender Tool Circulaire gevels”. Beide methodes richten zich (op dit moment nog) op gevels. -
Artikel
Tool to stimulate collaboration in the Procurement Process of Circular Road Projects
This report will present the results and experiences of the CME2100-11 course ‘Research Internship’ at TU Delft Faculty of Civil engineering, carried out at the Municipality of Amsterdam in the period between the 26th of July 2021 and the 26th of October 2021.
In this period, Juliëtte Mohamed has been the supervisor of Menouschka R.Baldew within the Municipality of Amsterdam which explains the continuation and relation of the tools.
The Municipality of Amsterdam is one of the partners involved in the program ‘De Circulaire Weg (DCW)’, where different involved parties are aiming to minimize the use of primary materials, increase the reuse of materials by integrating concepts of circularity within the infrastructure sector, and conduct research on the infrastructure-as-a-Service (IaaS) contract model. Currently, ongoing research within the ‘DCW’ must determine if the IaaS contract model can enhance the implementation of circularity within the road construction sector. In IaaS certain obligations, such as ownership of the infrastructure object to the contractor. Within ‘DCW’, there are plans to carry out the project ‘Pilot Tijdelijke weg bij ArenA’ in Amsterdam Zuid Oost.
This research internship assignment aims to create a tool that can be used by all involved parties during the design, procurement process, and construction of circular road projects within the Municipality of Amsterdam. On the basis of initial literature research and talks with partners in ‘DCW’, the research question for this assignment is as follows: ‘What circular and doughnut economic applications can be integrated in a tool in case Infrastructure-As-a-Service (IaaS) contract model is used for circular road construction projects?’
For the research, literature review and interviews are conducted. Within scientific literature, different topics are researched such as Circular Economy (CE) principles, Doughnut Economy (DE) principles, methods of procurements, PSS, and circular design criteria. Also, grey literature is reviewed. With the ‘DCW’ partner program being carried out in the Netherlands, mainly literature from the Dutch context is taken into account. ‘Platform CB’23’, ‘Duurzaam GWW’, and the Dutch public authority Rijkswaterstaat (RWS) have already carried out quite some research related to circular principles within the civil engineering sector. Furthermore, interviews are conducted with experts and partners involved in the pilot ‘Tijdelijke weg bij ArenA’.
Upon the start of the internship, an existing tool for the procurement of circular façade was received by the Intern as an ‘Excel’ file. After analyzing the literature review and interviews, the results are used to review and modify this existing tool to make it useable for the procurement of circular road projects.
The results of the literature review and interviews show that there are still some bottlenecks occurring between the contractor and contracting party during the procurement process in which circular criteria are assessed. One of the reasons is that communication between involved parties does not always go smoothly. With circularity, sustainability, and IaaS contract model being relatively new concepts within the road construction sector.
The modified tool, referred to as ‘CTCR’ (Collaboration Tool for Circular Roads), will be used by the municipality, road design team, and contractor in order to stimulate collaboration between the parties during different stages in the procurement process, for example during the pre-selection phase. Furthermore, the tool can also help especially the design team to consider different design principles for the road. CE main themes, categories, and sub-categories together with DE principles are integrated into the ‘CTCR’. The CE main themes are: protecting the material stocks, protecting the environment, and protecting the existing value. For the doughnut economy, the main principles are related to social wellbeing and work.