Abstract: The TIP-system concerns a class of systems for collecting and/or disseminating information in relation to traffic, whereby information about individual persons and/or vehicles can be collected and checked on reliability (trustworthiness) in such a way that yet sufficient (privacy) protection can be offered against illegitimate tracing of individual persons and/or vehicles. Also, these systems can easily be prepared for future expansion (extensions), refinements and possible other changes. So, one may start using a simple variation and gradually introduce more and more applications and refinements. TIP-systems can be used, for example, for imposing all sorts of traffic fees, that is, for traffic pricing.