The European GINA project is intended to address and overcome many of the institutional, technical and public acceptance hurdles currently faced by satellite-based road user charging schemes. Dave Tindall and Denis Naberezhnykh, TRL, and Laure Dezes, ERF, write. Pay-as-you-drive Road User Charging (RUC), whereby demand (or congestion) is managed by applying appropriate tariffs in order to encourage drivers to make their journeys at less busy times, on less congested routes or even on different modes, could