Vehicle Guidance System and Method for Operating a Travel Function on the Basis of the Distance from a Signaling Unit

A vehicle guidance system provides a travel function for automated longitudinal guidance of a motor vehicle at a signaling unit. The vehicle guidance system is designed to determine an environmental data based distance from an upcoming first signaling unit on the basis of environmental data from one or more environmental sensors of the vehicle, and to determine a map data based distance from the upcoming first signaling unit on the basis of map data relating to a road network travelled by the vehicle. The vehicle guidance system is further designed to determine an estimated value of the distance from the first signaling unit on the basis of the environmental data based distance and on the basis of the map data based distance, and to bring about the automated longitudinal guidance of the vehicle at the first signaling unit on the basis of the estimated value of the distance from the first signaling unit.