Abstract: An assessment of whether a roadway is directional is provided. The assessment includes stipulating a dimension if not previously calculated, and receiving of an output from an apparatus for environment recognition for a vehicle, which output is based on recognition of an environment of the vehicle at one instant. The assessment also include associating a factor with the output, wherein the factor is based on a speed of the vehicle at the instant associated with the output. The output is mapped into a rating value in accordance with a predefined mapping specification, and the factor is associated with the rating value. The dimension is then calculated based on a sum that is based on the rating value weighted with the associated factor, and on the previously calculated or stipulated dimension, after which the dimension can be provided.

Abstract: An assessment of whether a roadway is directional is provided. The assessment includes stipulating a dimension if not previously calculated, and receiving of an output from an apparatus for environment recognition for a vehicle, which output is based on recognition of an environment of the vehicle at one instant. The assessment also include associating a factor with the output, wherein the factor is based on a speed of the vehicle at the instant associated with the output. The output is mapped into a rating value in accordance with a predefined mapping specification, and the factor is associated with the rating value. The dimension is then calculated based on a sum that is based on the rating value weighted with the associated factor, and on the previously calculated or stipulated dimension, after which the dimension can be provided.