A method for determining at least one road user with a potential for interaction in a route segment includes detecting, using a unit outside a first vehicle, information with respect to a plurality of road users entering a route segment at an entry point to the route segment, where the information comprises information about one or more properties of the plurality of road users. The method also includes determining service data based on the information with respect to at least one of the plurality of road users, and determining that the first vehicle is situated in the route segment or will be situated in the route segment after a predefined time interval has elapsed. Thereafter, service data is provided in the first vehicle.