1. Method for implementing a route guidance service to a user in a telecommunications system, the method comprising the steps of representing the area serviced by a three-dimensional model comprising surface elements describing the area, sending a description of how a route animation is formed at a user terminal to the user terminal, characterized by the steps of defining first a route between selected route points, selecting surface elements visible to said route from the three-dimensional model on the basis of the route defined, forming an ordered set from the selected surface elements, and in said description, informing the terminal of said ordered set for constructing a route animation on the basis of said ordered set.