Layer 3: Material flows and stocks

Goal: Find material flow and stock data (in tonnes/year) for Layer 3.

Approach: In Layer 3, you look for and add material quantities (weight) to the value chains constructed in Layer 2. For all value chain stages of all materials that are applicable in the city, the respective masses have to be provided in tonnes/year. This way, the extraction flows, manufacturing flows, consumption flows, composition and addition to (artificial) stocks (e.g. building stocks), waste flows, import and export flows are all quantified. Similarly to Layer 2, Layer 3 is also sector specific as it focuses on the selected sector materials.

Outline of the video

• Meat of the work; The data points that we are ultimately after.
• Lifecycle of materials and products
• They are different from product to product, but at a high level, they are the same.
• Get something from natural environment (mine, farm), production process to transform raw materials, transport, transformed into end product, retail, consumption/use (textiles, food, electronics, fuel, water), storage (materials in buildings), end-of-life.
• M4:40, your goal:
  • fully understand the different dynamics of your city, what happens in your city.
  • Obtain data on all flows and stocks.
  • Find data in numbers (weight) on materials/products linked to timeframes and location

Find more specific instructions for Extraction / harvesting

Find more specific instructions for Manufacturing

Find more specific instructions for Use

Find more specific instructions for Stock

Find more specific instructions for Waste

Find more specific instructions for Imports and Exports