The article describes the methodology used to systematically enhance the Household Travel Surveys (HTS) with energy data on consumption, local pollutant emissions and greenhouse gas emissions in France. This is part of an approach called Mobility Emission Energy Diagnosis (MEED), which aims to facilitate the development of Urban Mobility Plans by providing a strategic diagnosis of environmental issues related to urban mobility of travellers. To obtain quality data that are comparable in time and space, a standardized methodology is proposed. This has been used systematically since 2014, and has already made it possible to link individual mobility behaviours with emissions of pollutants in about 25 towns, which represents about 15% of the French population. The method used is considered relevant and the database so constituted should be capable of generating many innovative analyses.