Research and analysis

2017 emission curves for use in transport modelling and appraisal

Research producing updated emissions curves for use in WebTAG and the National Transport Model, including CO2, NOx and PM10.

• From: Department for Transport
• Published: 30 November 2017

Documents

Production of updated emission curves for use in the national transport model

PDF, 1.35 MB, 65 pages

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Details

Completed in 2013 to 2014 for the Department for Transport by consultants Ricardo-AEA, this research produced updated emission curves for use in WebTAG and the National Transport Model. These curves relate average driving speed to fuel consumption and pollutant emissions, including CO₂, NOₓ and PM10.

The findings of this report are already published in WebTAG appraisal guidance und. They underpin DfT’s national road traffic forecasts (most recently updated in 2015) as well as government’s carbon budgets analysis.

These emission curves have replaced the 2012 emission curves.

Published 30 November 2017