System for locating a vehicle in a first place inside a first area and then in at least one second place inside a second area (120, 121, 122) where the said vehicle passes consecutively, the said areas being mutually different, characterized in that it comprises: - a pair of cameras (11 and 12) whose respective fields of vision include the first area in the said first place, and, - at least one monocular camera (20, 21, 22) whose field of vision includes a second area other than the said first area in the said second place, - a modelling unit which is designed - to receive the signals of images of each of the cameras (11 and 12) of the pair of cameras of the said first place, - to detect the said vehicle while it is situated at the first place in front of the said cameras of the said pair of cameras of the said first place, and - to establish a 3D model at a first place (M 1) of the vehicle thus detected or of a part of the said vehicle and thus locate it at the said first place of the said first area, the said model (M 1) consisting of the coordinates of at least three significant points of the said vehicle or of at least one significant point of the said vehicle and of a plane formed of points of the said vehicle, and - a position estimating unit which is designed - to receive the signals of images of the monocular camera (20, 21, 22) of a second area (120, 121, 122) of the said second place, - to receive the model at the first place M 1 that the said modelling unit has established for the said vehicle, and - to establish a correspondence between the or each point of the model at the first place (M 1) and a point in an image taken by the monocular camera (20, 21, 22) of the said second place, and thus recognize the said vehicle present at the second place of the said second area and which was previously located at the said first place of the first area, the said position estimating unit being furthermore designed to determine the coordinates of the point or points of the recognized vehicle or of a part of the said recognized vehicle at a second place of the said second area considered (120, 121, 122) which correspond to the point (s) of the said model at the first place (M 1) and thus locate the said vehicle in the second place of the said second area (120, 121, 122). - a pair of cameras (11 and 12) whose respective fields of vision include the first area in the said first place, and, - at least one monocular camera (20, 21, 22) whose field of vision includes a second area other than the said first area in the said second place, - a modelling unit which is designed - to receive the signals of images of each of the cameras (11 and 12) of the pair of cameras of the said first place, - to detect the said vehicle while it is situated at the first place in front of the said cameras of the said pair of cameras of the said first place, and - to establish a 3D model at a first place (M 1) of the vehicle thus detected or of a part of the said vehicle and thus locate it at the said first place of the said first area, the said model (M 1) consisting of the coordinates of at least three significant points of the said vehicle or of at least one significant point of the said vehicle and of a plane formed of points of the said vehicle, and - a position estimating unit which is designed - to receive the signals of images of the monocular camera (20, 21, 22) of a second area (120, 121, 122) of the said second place, - to receive the model at the first place M 1 that the said modelling unit has established for the said vehicle, and - to establish a correspondence between the or each point of the model at the first place (M 1) and a point in an image taken by the monocular camera (20, 21, 22) of the said second place, and thus recognize the said vehicle present at the second place of the said second area and which was previously located at the said first place of the first area,