Short answer

When designing for circularity in urban environments, actively seek out and apply the limited available evidence-based indicators, and advocate for their further development and implementation.

Field
Sustainability
Source
Sustainability (2023)
Method
Systematic Literature Review
Sample
Fewer than 25 papers met the inclusion criteria.
Evidence
Strong effect

Despite the growing importance of urban circularity for resource efficiency, there is a significant deficit in the availability of evidence-based, measurable, and actionable indicators to track progress in real-time. This sustainability research insight is drawn from a 2023 study published in Sustainability. Using Systematic literature review with Fewer than 25 papers met the inclusion criteria., researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing for circularity in urban environments, actively seek out and apply the limited available evidence-based indicators, and advocate for their further development and implementation.

Study
SustainabilityRecentStrong effect

Evidence-Based Circularity Indicators for Cities Are Critically Lacking

Despite the growing importance of urban circularity for resource efficiency, there is a significant deficit in the availability of evidence-based, measurable, and actionable indicators to track progress in real-time.

Sustainability · 2023

01

Key Findings

  • 01The current body of literature offers a very limited number of evidence-based, measurable, and actionable indicators for urban circularity.
  • 02There is a weak practical commitment to evidence-based tracking of circularity within cities.
  • 03Progress in circularity requires strengthening and testing existing relevant indicators and increasing evidence-based monitoring.
02

Application

Design takeaway

When designing for circularity in urban environments, actively seek out and apply the limited available evidence-based indicators, and advocate for their further development and implementation.

How to apply

When undertaking a design project focused on urban circularity, identify the key performance indicators (KPIs) that can be used to measure resource loops, waste reduction, and material longevity. If existing indicators are insufficient, consider proposing and justifying new metrics based on established principles.

Project actions

  • 01When researching existing solutions or designing new ones, look for metrics that quantify resource use, waste diversion, and product lifespan.
  • 02If your design aims to improve circularity, consider how you will measure its success and what data you will collect.
03

Method & Evidence

AimWhat are the evidence-based, measurable, and actionable indicators currently available for cities to benchmark the environmental and climate benefits of circular economy processes?
MethodSystematic Literature Review
ProcedureA systematic literature review was conducted using the PRISMA protocol to screen and evaluate scholarly and grey literature for evidence-based circularity indicators relevant to urban contexts. Over 15,000 sources were initially screened, with a rigorous selection process applied.
SampleFewer than 25 papers met the inclusion criteria.
ContextUrban sustainability and resource management

Variables

IVAvailability of evidence-based, measurable, and actionable circularity indicators for cities.
DVCommitment to evidence-based tracking of circularity; practical progress towards a circular economy.
CVUrban context, waste prevention cascades, literature sources (scholarly and grey).
04

Strengths & Limitations

Strengths

  • +Comprehensive systematic review methodology (PRISMA protocol).
  • +Focus on actionable and measurable indicators relevant to urban planning.

Limitations

The limited number of indicators means that some aspects of circularity might be overlooked. The focus on cities may not capture nuances relevant to other contexts.

Reliability & validity

The reliability of the findings is supported by the systematic review methodology. Validity is enhanced by the focus on evidence-based and actionable indicators, though the limited number of findings might affect the generalizability of specific indicator effectiveness.

Think critically

Given the scarcity of measurable indicators, how can designers effectively advocate for and implement circular design strategies without robust quantitative evidence of their impact?

05

Design Principles

"Measure what matters: Prioritize the use and development of validated, actionable indicators to guide and assess circular design interventions."

Designers and urban planners need robust metrics to evaluate the effectiveness of circular strategies. The absence of such indicators hinders evidence-based decision-making, making it difficult to benchmark performance, identify areas for improvement, and demonstrate the tangible benefits of circular initiatives.

06

What This Means for Your Design

It's really hard to tell if cities are actually being 'circular' (using resources wisely and reducing waste) because there aren't many good ways to measure it.

How to use in your project

  • 1.Reference this study when discussing the challenges of measuring circularity in your design project or when justifying the metrics you choose to use.
07

Add to My Project

08

Quick Cite

Paragraph starter

This research highlights a critical gap in the practical implementation of circular economy principles within urban environments, noting a significant lack of evidence-based, measurable, and actionable indicators for tracking circularity. This deficiency hinders the ability of cities and designers to benchmark progress, make informed decisions, and demonstrate the tangible benefits of circular strategies, underscoring the need for further development and validation of such metrics.

09

Source

Sustainability

Measuring Circularity in Cities: A Review of the Scholarly and Grey Literature in Search of Evidence-Based, Measurable and Actionable Indicators

journal · 2023

View source

Questions About This Research

What does the research say about evidence-based circularity indicators for cities are critically lacking?
When designing for circularity in urban environments, actively seek out and apply the limited available evidence-based indicators, and advocate for their further development and implementation. Evidence: Sustainability (2023).
Why does "Evidence-Based Circularity Indicators for Cities Are Critically Lacking" matter for design?
Designers and urban planners need robust metrics to evaluate the effectiveness of circular strategies. The absence of such indicators hinders evidence-based decision-making, making it difficult to benchmark performance, identify areas for improvement, and demonstrate the tangible benefits of circular initiatives.
How can designers apply this research?
When designing for circularity in urban environments, actively seek out and apply the limited available evidence-based indicators, and advocate for their further development and implementation.
What were the main findings?
The current body of literature offers a very limited number of evidence-based, measurable, and actionable indicators for urban circularity.. There is a weak practical commitment to evidence-based tracking of circularity within cities.. Progress in circularity requires strengthening and testing existing relevant indicators and increasing evidence-based monitoring.
What research method was used?
Systematic Literature Review with Fewer than 25 papers met the inclusion criteria..
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2023 journal from Sustainability.
What should I do differently in my next project?
When undertaking a design project focused on urban circularity, identify the key performance indicators (KPIs) that can be used to measure resource loops, waste reduction, and material longevity. If existing indicators are insufficient, consider proposing and justifying new metrics based on established principles.
What are the limitations?
The review focused on indicators for cities, and the findings may not directly translate to other scales. The scarcity of indicators suggests potential biases in existing research towards theoretical frameworks over practical measurement.