FIELD: physics.
SUBSTANCE: group of inventions relates to a device and method for issuing navigation instructions along a route. Device implementing a method of issuing navigation instructions along a route includes: a module for detecting a position of a vehicle and a lane. Determination module configured to determine whether the vehicle should change the lane detected by the position detection module to another lane so as to move to a branch point or an intersection on a route. Guide module configured to provide issuing navigation instructions to change the lane. When determining lane change by a vehicle several times, the guide module provides the first output of navigation instructions at the point where the distance from the position of the vehicle to the branch point is less than the distance obtained so that the predetermined distance is multiplied by the lane change number.
EFFECT: informing the driver with respect to the corresponding point in order to change the lane.
8 cl, 5 dwg
