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A screenshot of a Travelfootprint journey emissions results page. source

Travelfootprint is an online tool that provides detailed comparative information about the impacts of the main methods of transport available in the UK on air quality and climate change.



The Travelfootprint tools are intended for use by the general public, business users and policy makers to compare the life cycle environmental impacts of the main methods of passenger travel in the UK.

The site aims to inform people of the least polluting forms of transport and encourage: the use of the most sustainable methods for passenger journeys, the purchase of the least polluting vehicles, and to help businesses understand the environmental impact of their fleet and to stimulate improvements.

Travelfootprint currently provide three different tools for users. The Journey Emissions Calculator estimates the emissions of carbon dioxide (CO2), nitrogen oxides (NOx), and particulates generated by a journey in the UK. The Vehicle Emissions Calculator estimates, and allows comparison of, the emissions of carbon dioxide (CO2), nitrogen oxides (NOx), and particulates generated by different car brands and models. The Fleet Emissions Audit Tool calculate emissions of carbon dioxide (CO2) generated by fleet use of diesel, petrol, LPG and electricity.


Travelfootprint has been developed by the Clear Zones Partnership involving the London Borough of Camden, the City of London and the City of Westminster with support from Transport for London and the Department of Environment, Food and Rural Affairs.

The Travelfootprint tools are based on the Life Cycle Assessment of Vehicle Fuels and Technologies research project carried out in 2006. The project assessed the relative impacts of several fuel and vehicle types including: petrol, diesel, bioethanol, biodiesel, natural gas, liquefied petroleum gas, battery electric, and hybrid electric vehicles. The environmental impacts of these fuel/vehicle options are assessed on a life cycle basis and included the impacts associated with: fuel production, vehicle operation, and vehicle manufacture. Travelfootprint tools use the same methodology developed for the original study but extends the application beyond passenger cars to include the main passenger travel modes.

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