Short answer

Designers and urban planners should leverage detailed material stock data to proactively plan for resource recovery and integration into new projects, rather than treating demolition waste as a disposal problem.

Field: Resource Management
Source: Environmental Science & Technology (2020)
Method: Integrated geo-localized material stock analysis with material intensity coefficients.
Evidence: Strong effect

A detailed urban resource cadaster can quantify and map the vast quantities of secondary materials within a city's built environment, revealing significant potential for circular economy initiatives. This resource management research insight is drawn from a 2020 study published in Environmental Science & Technology. Using Integrated geo-localized material stock analysis with material intensity coefficients., researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers and urban planners should leverage detailed material stock data to proactively plan for resource recovery and integration into new projects, rather than treating demolition waste as a disposal problem.

Study

Resource ManagementHigh ImpactStrong effect

Urban Material Cadaster Identifies 66.7 Megatons of Recoverable Resources in Odense

A detailed urban resource cadaster can quantify and map the vast quantities of secondary materials within a city's built environment, revealing significant potential for circular economy initiatives.

Environmental Science & Technology · 2020

Key Findings

01Odense contains an estimated 66.7 megatons of construction materials.
02Aboveground stock, while lighter, contains a wider variety of materials compared to underground stock.
03The cadaster provides high-resolution spatial and vertical distribution data of materials.

Application

Design takeaway

How to apply

Conduct a similar material stock analysis for your local urban area or a specific building typology to identify potential resources for reuse or recycling.

Project actions

01When researching materials for a design project, consider not only their initial properties but also their potential for end-of-life recovery.
02Investigate local waste management data or building material databases to understand available secondary resources.

Method & Evidence

AimTo develop and apply an urban resource cadaster methodology to quantify the stock of construction materials within a city and assess its potential for circular economy applications.

MethodIntegrated geo-localized material stock analysis with material intensity coefficients.

ProcedureThe study involved a bottom-up analysis of material stocks in buildings, roads, and pipe networks, using primary data on material intensity coefficients for the city of Odense, Denmark.

ContextUrban planning and construction industry, focusing on circular economy principles.

Variables

IV["Urban area (Odense, Denmark)","Types of infrastructure (buildings, roads, pipes)"]

DV["Total quantity of construction materials (megatons)","Spatial distribution of materials","Material variety"]

CV["Material intensity coefficients","Geo-localization data"]

Strengths & Limitations

Strengths

+Provides a novel methodology for urban material stock assessment.
+Offers high-resolution spatial data crucial for practical application.

Limitations

Gathering precise data on material quantities and types for a real-world urban area can be extremely challenging due to data accessibility and the complexity of urban environments.

Reliability & validity

The reliability of the findings depends heavily on the accuracy of the input data (material intensity coefficients and spatial data). Validity is supported by the comprehensive approach covering multiple infrastructure types.

Think critically

How might the vertical distribution of materials within a city impact the feasibility and cost-effectiveness of urban mining operations?

Design Principles

"Map and quantify embedded urban resources to facilitate circular material flows."

Understanding the precise location, type, and quantity of materials embedded in existing infrastructure is crucial for effective urban mining and resource recovery. This knowledge empowers designers and urban planners to transition from linear to circular material flows, reducing waste and the demand for virgin resources.

What This Means for Your Design

Imagine your city is a giant treasure chest full of old building materials. This study shows how to map out exactly what's inside, how much there is, and where it is, so we can reuse it instead of throwing it away.

How to use in your project

1.Use the concept of a material cadaster to justify the selection of recycled or salvaged materials in your design project.
2.Reference this study to highlight the importance of understanding material lifecycles beyond initial use.

Add to My Project

Quick Cite

Paragraph starter

This research highlights the critical need for detailed urban resource cadastres to support circular economy initiatives. By quantifying and spatially mapping the vast stocks of secondary materials within cities, such as the 66.7 megatons identified in Odense, Denmark, it becomes possible to plan for efficient material recovery and reuse in construction and demolition processes. This approach shifts the perspective from waste management to resource management, enabling designers and urban planners to tap into existing material flows and reduce reliance on virgin resources.

Source

Environmental Science & Technology

Developing an Urban Resource Cadaster for Circular Economy: A Case of Odense, Denmark

journal · 2020

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Questions About This Research

What does the research say about urban material cadaster identifies 66.7 megatons of recoverable resources in odense?: Designers and urban planners should leverage detailed material stock data to proactively plan for resource recovery and integration into new projects, rather than treating demolition waste as a disposal problem. Evidence: Environmental Science & Technology (2020).
Why does "Urban Material Cadaster Identifies 66.7 Megatons of Recoverable Resources in Odense" matter for design?: Understanding the precise location, type, and quantity of materials embedded in existing infrastructure is crucial for effective urban mining and resource recovery. This knowledge empowers designers and urban planners to transition from linear to circular material flows, reducing waste and the demand for virgin resources.
How can designers apply this research?: Designers and urban planners should leverage detailed material stock data to proactively plan for resource recovery and integration into new projects, rather than treating demolition waste as a disposal problem.
What were the main findings?: Odense contains an estimated 66.7 megatons of construction materials.. Aboveground stock, while lighter, contains a wider variety of materials compared to underground stock.. The cadaster provides high-resolution spatial and vertical distribution data of materials.
What research method was used?: Integrated geo-localized material stock analysis with material intensity coefficients..
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2020 journal from Environmental Science & Technology.
What should I do differently in my next project?: Conduct a similar material stock analysis for your local urban area or a specific building typology to identify potential resources for reuse or recycling.
What are the limitations?: The accuracy of the cadaster is dependent on the quality and availability of primary data on material intensity coefficients and the completeness of existing urban infrastructure data.