# How do I calculate emissions from milling and resurfacing a road?

Canonical: https://senseible.earth/answers/road-resurfacing-milling-overlay-emissions

Add diesel for the milling machine, paver, rollers and tippers to the emissions of the hot mix laid, from the asphalt plant's fuel per tonne and the bitumen. Reusing milled material in new mix cuts virgin bitumen and aggregate. Divide by lane km.

## Inputs

- Diesel per shift for each machine.
- Tonnes of hot mix laid.
- Asphalt plant fuel and electricity per tonne.
- Share of reclaimed asphalt in the mix.

## Reporting

Keep site machinery diesel and the material footprint as separate lines, so a buyer can compare contractors fairly.

## What Senseible does here

Senseible reads bills, fuel invoices and production records into dated, fingerprinted records, so the figure you send a buyer can be traced to its documents.

- [Hot mix asphalt plant CO2](https://senseible.earth/answers/hot-mix-asphalt-plant-co2-per-tonne)
- [Bitumen road footprint](https://senseible.earth/answers/bitumen-road-carbon-footprint-per-km)
- [Tipper truck per trip](https://senseible.earth/answers/tipper-truck-emissions-per-trip)

Sources: [IPCC 2006 Guidelines, Volume 2 Energy (fuel defaults)](https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol2.html), [GHG Protocol Corporate Value Chain (Scope 3) Standard](https://ghgprotocol.org/corporate-value-chain-scope-3-standard), [GHG Protocol Corporate Standard](https://ghgprotocol.org/corporate-standard)

Last reviewed 2026-10-22.