The SHANTI (Survey Harmonization with New Technologies Improvement) COST Action has coordinated research efforts on data harmonization for transport surveys across Europe. 36 laboratories from 21 countries (of Europe, but also Australia) have worked together in 20 meetings and four working groups, towards the harmonization of methods of production and processing of national data on mobility, taking into account the contribution of new technologies (logs from GPS, GSM, RDS, etc.) in order to make international comparisons. Thus, we have produced correction to cope the bias due to different survey methods and produced robust and consistent daily mobility estimators. This Action was a forum not only to emerge (with Eurostat and DG Move) new projects around data as the collection on a continuous basis and standardization enabled by these new technologies, but also to produce articles and scientific papers.