Image by M. B. M.

Visualizing data to evaluate circularity

 

Circularity Dashboard

The Circularity Dashboard focuses on three indices:

  • An Urban Mining Index (UMI) that focuses on the circular possibilities of a regenerative city. It aims to visualize the current state of circularity in demolition activities.

  • The Lifespan Index (LI) visualizes the current and future opportunities for extending the existing built environment through refurbishment and transformation.

  • The Circularity Index (CI), intended to visualize the flexibility of new constructions.

 

Based on a methodology of analyzing each indicator by data availability and user requirements, five circularity indicators are presented for implementation in the first version of the Dashboard. The indicators are visualized using business intelligence (BI) software (Tableau). Hover over graphs for more information and to interact with the data.

 

  1. Amount of construction and demolition waste (CDW): This helps policymakers to understand the quantities of waste generated. The amount of waste is monitored annually creating a ratio that can assist in understanding proportions, which will help building control and planning officers in evaluating performance and setting targets for reducing the amount of CDW and increasing recycling and reuse.

  2. Recycling rate of CDW: This helps policymakers validate their targets for recycling and reuse, through monitored data that captures the current situation and yearly developments.

  3. Refurbishment and transformation relative to new construction: This provides an understanding of the level of refurbishment and transformation activity in relation to new construction and the development annually. It can help urban planners set targets for buildings to be refurbished and transformed rather than demolished (to achieve a better ratio outcome).

  4. Demolition rate: This provides an understanding of the extent of demolitions carried out in the city, and a basis for policymakers to set city-level targets for buildings to be refurbished rather than demolished, lowering the rate of demolition.

  5. ​Average age of demolished buildings: The ratio in time illustrates if buildings are demolished earlier i.e. if the life span of buildings is decreasing or increasing. It can help policymakers identify any trends of demolished buildings’ age and support setting city-level targets for the life span of buildings and for buildings to be refurbished rather than demolished.

Helsinki metropolitan area

Copenhagen

London

Hamburg