Method for localizing a particular road section from a first digitized map of a traffic route network in a second digitized map of the traffic route network, wherein the method is performed by a navigation system, having the features of: - stipulation of an original root point for the road section in the first map and determination of the co-ordinates of the original root point; - production of an original tree structure starting from the original root point from a plurality of branches on which tree points (14a, 15, 16a, 16b, 16c) are arranged such that they each correspond to a point on a traffic route in the first map; - stipulation of a reference root point in the second map in proximity to the co-ordinates of the original root point and production of a reference tree structure starting from the reference root point from a plurality of branches on which tree points (25a, 25b, 25c,... 31f) are arranged such that they each correspond to a point on a traffic route in the second map; - comparison of the original tree structure and the reference tree structure and stipulation of a further reference root point until a particular match between the reference tree structure and the original tree structure is attained; and - determination of the road section for the reference root point in the second map on the basis of the relationship of the road section with the original root point in the first map, characterized in that: - an original root point is stipulated that is situated on or in proximity to a junction in the road network, - the tree points (14a, 15, 16a, 16b, 16c) in the original tree structure are stipulated as road points, with a representation that is detached from the road network being produced by virtue of the individual tree points being connected to one another without heed to the underlying road network. - stipulation of an original root point for the road section in the first map and determination of the co-ordinates of the original root point; - production of an original tree structure starting from the original root point from a plurality of branches on which tree points (14a, 15, 16a, 16b, 16c) are arranged such that they each correspond to a point on a traffic route in the first map; - stipulation of a reference root point in the second map in proximity to the co-ordinates of the original root point and production of a reference tree structure starting from the reference root point from a plurality of branches on which tree points (25a, 25b, 25c,... 31f) are arranged such that they each correspond to a point on a traffic route in the second map; - comparison of the original tree structure and the reference tree structure and stipulation of a further reference root point until a particular match between the reference tree structure and the original tree structure is attained; and - determination of the road section for the reference root point in the second map on the basis of the relationship of the road section with the original root point in the first map, - an original root point is stipulated that is situated on or in proximity to a junction in the road network, - the tree points (14a, 15, 16a, 16b, 16c) in the original tree structure are stipulated as road points, with a representation that is detached from the road network being produced by virtue of the individual tree points being connected to one another without heed to the underlying road network.