To ensure smooth communication and collaboration, here are some troubleshooting tips to address common issues:
Check Internet Connection: Verify that you have a stable and reliable internet connection. Use a wired connection when possible, as it tends to be more stable than Wi-Fi. If using Wi-Fi, make sure you have a strong signal.
Update the Browser or App: Ensure that you are using the latest version of the web browser. Developers frequently release updates to address bugs and improve performance.
Clear Browser Cache: Sometimes, cached data can cause conflicts or issues. Clear the browser cache and cookies before joining the meeting.
Test Audio and Video: Before the meeting, check your microphone and camera to ensure they are working correctly. If you are a speaker, you can click on "Start Practice Session" button test to ensure audio and video devices are functioning.
Close Other Applications: Running multiple applications in the background can consume system resources and lead to performance issues. Close unnecessary apps to free up resources for the Dryfta meeting platform.
Restart Your Device: If you encounter persistent issues, try restarting your computer or mobile device. This can help resolve various software-related problems.
Use Supported Browsers: Ensure you are using a browser supported by the meeting platform. Recommended browsers: Chrome, Firefox, Edge, and Brave.
Allow Necessary Permissions: Make sure the Dryfta meeting platform has the required permissions to access your microphone, camera, and other necessary features.
Disable VPN or Firewall: Sometimes, VPNs or firewalls can interfere with the connection to the meeting platform. Temporarily disable them and see if the issue persists.
Switch Devices: If possible, try joining the meeting from a different device to see if the problem is specific to one device.
Reduce Bandwidth Usage: In cases of slow or unstable internet connections, ask participants to disable video or share video selectively to reduce bandwidth consumption.
Update Drivers and Software: Ensure your operating system, audio drivers, and video drivers are up to date. Outdated drivers can cause compatibility issues with the Dryfta meeting platform.
Contact Support: If none of the above steps resolve the issue, reach out to the platform's support team. They can provide personalized assistance and troubleshoot specific problems.
By following these troubleshooting tips, you can tackle many common problems encountered on Dryfta meeting platform and have a more productive and seamless meeting experience.
Circular supply chain in Dutch social housing renovation: a review from network, time, lifecycle, and profit and risk sharing dimensionsView Abstract Oral presentationCircularity in Urban Regions01:30 PM - 03:00 PM (Europe/Amsterdam) 2022/02/17 12:30:00 UTC - 2022/02/17 14:00:00 UTC
Nowadays, circular economy has gained increasing attention in built environment research. The Dutch social housing sector is facing challenges when transforming the existing building stock in a circular approach. It calls for a transformation of traditional supply chains to a circular one. However, circular supply chain in the built environment has not been fully adopted in the social housing renovation. Therefore, this study tries to fill this gap by reviewing the current studies of circular transition within Dutch social housing sector. More specifically, the supply chain for renovation practices in Dutch social housing sector is reviewed from different dimensions. The review process finds that the implementation gaps in the circular supply chain have correlations with network, time, lifecycle, and profit and risk sharing dimensions, which need to be focused upon when designing circular supply chains in the Dutch social housing renovation. Network dimension refers to an efficient and wider network involves all parties through the entire chain, through which elements such as information, materials, money, and ownership can be exchanged efficiently. Time dimension means the necessity for long-term relationships with different parties and making agreements in different timespan. Lifecycle dimension is about expanding the current construction phases by including circular phases (such as demolition of building materials and design with reused materials) and including more actors in the initial and design phases. The last dimension is the degree of profit and risk sharing with a full chain collaboration. The results indicate that further studies can be conducted from these four dimensions to improve the implementation of a circular supply chain.
The role of digitalization for collaboration in the reverse logistic network of urban construction and demolition wasteView Abstract Oral presentationCircularity in Urban Regions01:30 PM - 03:00 PM (Europe/Amsterdam) 2022/02/17 12:30:00 UTC - 2022/02/17 14:00:00 UTC
Reverse logistics (RL) is an emerging concept for the minimization of construction and demolition waste (CDW) and the development of the circular construction industry. While digitalization is believed to be a key enabler for RL, it is yet unexplored whether digital technology could enhance the collaboration between organizations in the RL network of the supply chain of construction materials. This study peaks into this void by conducting literature reviews and a case study in Dutch municipal systems. The reviewed cases are mapped into a conceptual framework based on the involved stakeholders in different tiers of the RL network and the collaborative mechanisms that are present. Moreover, the framework summarizes what types of digital technologies are integrated into those cases and how are the collaborative mechanisms enabled by them accordingly. Thereafter, the framework draws a comparison between the state-of-the-art of digitalization in RL-related research and the current practical cases in the Dutch urban context. This study makes theoretical and practical contributions by revealing the gaps and demands for the digital transition, with the purpose of formulating and maintaining collaboration in the RL network. It serves as a new guideline for cities to implement better digital tools and systems which promote collaboration for CDW reduction and circular construction.
Presenters Lu Ding PhD Researcher, TU Delft Co-Authors
Spatially explicit scenarios for material stocks and flows in Dutch buildings towards 2050View Abstract Oral presentationCircularity in Urban Regions01:30 PM - 03:00 PM (Europe/Amsterdam) 2022/02/17 12:30:00 UTC - 2022/02/17 14:00:00 UTC
The built environment causes an important part of society’s environmental impacts, both in the construction and in the use phase. As the energy performance of buildings improve, construction materials become more important as a cause of environmental impact. Less attention has been given to those materials. We work out three different strategies (traditional building, bio-based building and circular building) for the future built environment in the Netherlands, and assess the consequences for future material flows and stocks until 2050. All three strategies conform to the newest standards related to the energy performance of the buildings. We include these strategies in spatially explicit scenarios for construction and demolition in the Netherlands, with different assumptions on socio-economic developments. Our results show that the expected growth of the building stock and the long lifespan of buildings result in a relatively low material outflow compared to material inflow. Additionally, building and demolition rates are substantially higher in scenarios with a high level of urbanization due to building densification. Building construction in rural areas lowers material demand, but reduces the urban mining potential even further. Primary material demand can be lowered substantially when shifting towards biobased materials and circular constructions. Reduced floor space areas in dwelling and improved recycling practices can further reduce raw material demand. The approach presented in this work can be used to analyze strategies aimed at closing material cycles and lowering primary material demand in the building sector.
Making it Concrete: Analysing the Role of Concrete Plants’ Locations for Circular City Policy GoalsView Abstract Oral presentationCircularity in Urban Regions01:30 PM - 03:00 PM (Europe/Amsterdam) 2022/02/17 12:30:00 UTC - 2022/02/17 14:00:00 UTC
Increasingly, space for remanufacturing is seen as the most valuable resource to achieve circular economy (CE) policy goals, in particular for cities. However, in many cities, industrial urban areas are increasingly subject of – mostly circular designed - residential redevelopment. The proposition of this paper is that these diminishing industrial areas host, at least potentially, essential functions necessary to “close the material loop.” The reason why policy makers neglect the necessity of remanufacturing capacity, is because it is difficult to pinpoint the “ideal” geography of a circular loop. Most (circular) products can be transported limitless, thus their remanufacturing functions can be located around the world. But what if a critical material cannot be transported limitless and has circular potential? Therefore, this paper focusses on concrete for two reasons. First, concrete is by far the most abundant material in urban areas. Second, newly/circular made fluid concrete can only be transported for a limited time and distance. The hypothesis of this paper is that concrete plants are and will become essential for circular cities. Subsequently, we focus on the Dutch city of The Hague and combine a Material Flow Analysis with the locations of the concrete resupply chain. Our results show that potentially The Hague has a 100% circular concrete chain, but the importance of its concrete plant is (implicitly) neglected. We conclude that The Hague is illustrative for the problem of many circular cities that are without (implicitly) taking into account the whole circular resupply chain, jeopardized today a future urban CE.
Janneke Van Oorschot
