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Transport Mapping is where you tell Real-Time LCA how each material reaches the construction site. Once the inventory rows are mapped, the A4 (transport) emissions roll into the project total alongside production (A1–A3) and end-of-life (C) results. Open it by clicking the Transport Mapping tab in the Project Dashboard header.
Transport Mapping page showing an Inventory list of materials, each row coloured by mapping state, with a TRANSPORT MAPPING % and kgCO₂-eq/m²/year live counter in the header.

Transport Mapping with the inventory ready to be mapped

The data sources available in the dropdowns and the way A4 is calculated depend on the project’s country and calculation type. See Methodology & Compliance for the rules.

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Page layout

Transport Mapping uses a single panel — there is no Library to drag from. Each row in the Inventory is one of the materials already mapped in Material Mapping, with a quantity and a colour that tells you the row’s state at a glance. The header strip shows two live numbers:
  • TRANSPORT MAPPING % — share of inventory rows that have a transport assignment.
  • kgCO₂-eq/m²/year — current A4 intensity based on what is already mapped.
Both update as you map or unmap rows.

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Row states

Expanded Transport Mapping inventory with two yellow unmapped rows and two green rows where the emission is derived from material data.

Inventory rows expanded — yellow rows still need a Data Source, green rows are covered

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Map a transport type

Expand a row to open the assignment form. The flow is:
  1. Pick a Data Source — the table the emission factor comes from (for example, a distance-based table or a fuel-based table).
  2. Pick a Main Group and Sub Group to narrow down to a specific transport type.
  3. Review the calculated kgCO₂-eq/Kg, Total Emission, and Total Scaled Emission columns.
  4. Click Add to commit.
Transport Mapping Data Source dropdown listing a distance-based table and a fuel-based emission factors table.

Data Source dropdown — pick the table that matches the transport method

Transport Mapping row expanded with Main Group set to Beton and Sub Group set to Fabriksbeton, with calculated emission columns and an Add button.

Main Group and Sub Group narrow the assignment down to a specific transport type

Once committed, the row turns green and shows the picked transport type as a chip underneath the material name. The header counters update.
Transport Mapping row showing Ready-mix concrete C25/30 mapped to Beton → Fabriksbeton with 463.09 kgCO₂-eq total emission.

Mapped row — transport assignment summarised under the material name

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Fuel-based emissions

Some regulations expose a fuel-based table — the emission is calculated from the volume or mass of fuel consumed per material instead of from a distance. Pick the fuel data source, choose an Emission Factor (for example, Diesel), and enter litres or kilograms.
Transport Mapping row expanded with a fuel-based data source, Diesel emission factor, and empty (L) Liter and (Kg) Kilogram inputs.

Fuel-based assignment — Diesel emission factor with litre and kilogram inputs

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Material-derived data source

When a material’s EPD already includes module A4, Transport Mapping inherits the value automatically. The row shows an Emission derived from material data label and the Data Source picker is disabled — there is nothing to assign because the EPD already covers it.
Insulation - EPS row expanded with an Emission derived from material data note and a disabled Data Source picker.

Emission derived from material data — A4 comes from the EPD itself

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Search, sort, and filter

The toolbar above the inventory has the same shape as Material Mapping:
  • Search inventory — free-text search across material names.
  • Sort — order the list by Name, Amount, Weight, or Emission.
  • Filter — narrow by State (Error, Mapped (Material Data), Mapped (Transport Types), Unmapped) and Transport Types.
Transport Mapping sort dropdown with Name, Amount, Weight, and Emission options.

Sort menu — Name, Amount, Weight, or Emission

Transport Mapping filter dropdown with State options Error, Mapped (Material Data), Mapped (Transport Types), and Unmapped.

Filter menu — combine State and Transport Type filters