Research and analysis

Ultra-low emission vehicles: speed-emission and fuel/energy consumption rates

Explores an updated set of speed-emission and fuel/energy consumption rates for ultra low emission vehicles (ULEVs).

• From: Department for Transport
• Published: 31 October 2024

Documents

Speed-emission and energy consumption curves for ultra-low emission vehicles and non-fuel operating costs for all vehicles

PDF, 4.45 MB, 89 pages

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Details

This research explores the set of equations in transport analysis guidance (TAG) and National Transport Model (NTM) that describe how emissions of nitrogen oxides (NOx), fine particulate matter (PM), fuel and energy consumption vary with average speed for different ultra low emission vehicle (ULEV) types. 

It also provides an updated set of consumption curves for a wider range of ULEV vehicle types, including:

• hybrid
• plug-in hybrid
• battery electric and hydrogen fuel cell electric vehicle types in the passenger car
• light goods vehicle (LGVs)
• heavy goods vehicles (HGVs)
• buses and coaches fleets
• catenary battery electric vehicles in the HGV fleet

TAG provides information on the role of transport modelling and appraisal and how the transport appraisal process supports the development of investment decisions to support a business case.

Ricardo Energy and Environment conducted the research on behalf of DfT.

Published 31 October 2024