A milking arrangement (11) comprises at least a first (12) and a second (13) milking system for milking animals； a common entrance lane (14) configured to allow a plurality of animals to enter the milking arrangement； and a guiding structure (15) configured to guide each of the plurality of animals to either one of the first and second milking systems to be milked therein. The guiding structure comprises a smart gate arrangement (61) including an entrance through which animals can enter the smart gate arrangement, an animal identifier for identifying each animal having entered or is to enter the smart gate arrangement, and at least two separate exits, through which each animal, which has entered the smart gate arrangement, can be selectively guided to exit the smart gate arrangement after having been identified, to thereby be guided to a respective one of the first and second milking systems depending on the identity of the animal. The smart gate arrangement is configured, during selected periods of time, particularly during periods of low expected or measured utilization of the milking arrangement, to guide each animal, which has entered the smart gate arrangement, to exit the smart gate arrangement, to thereby be guided to a single one of the first and second milking systems irrespective of the identity of the animal.L'invention concerne un système de traite (11) comprenant au moins un premier système de traite (12) et un second système de traite (13) destinés à traire des animaux ； une voie d'entrée commune (14) conçue pour permettre à une pluralité d'animaux d'entrer dans le système de traite ； et une structure de guidage (15) conçue pour guider chaque animal de la pluralité d'animaux vers le premier ou le second système de traite pour y être trait. La structure de guidage comprend un système (61) à barrière intelligente comprenant une entrée à travers laquelle les animaux peuvent entrer dans le système à barrière intelligente, un identificateur d'animaux destin
