The project’s objective was to use a gender perspective to analyse the main Spanish transportation surveys and to propose measures for improvement. The key result was the creation of a new analytical category for transportation statistics and surveys: mobility of care. Public transport systems are typically designed around the needs of full-time workers. Therefore, transportation survey categories—and the statistics and analysis—may not properly account for trips arising from caring work, such as childcare, elder care and household maintenance, which are currently either hidden under other headings (e.g., visits, shopping) or not counted at all because the short distance travelled. By incorporating the idea of caring work and mobility of care into user surveys, the significant number of caring-work trips becomes visible and quantifiable. In addition, since women’s mobility relies less on cars, understanding gender differences in public transportation is also important for understanding climate change and for planning efficient neighbourhoods and cities.