A method for managing the passage of a vehicle through a toll station of a road, said station being passed through by at least one lane and each of said lanes having a barrier able to go from a closed position preventing a vehicle from passing to an open position allowing said vehicle to pass, said method including the following steps: - A step for acquiring at least one image of the vehicle arriving in a lane of the toll station at the barrier, by means of an image acquisition system placed near said lane, - A step for determining a parameter representative of the height of the vehicle, - A step for sending said at least one image and said parameter to at least one server hosted on the Internet, - A step for identifying the category of the vehicle using software located on said at least one server and able to process said at least one image and said parameter in order to retrieve information relative to the category of the vehicle, said software being based on a method consisting of: - Extracting the characteristics of each image from each category of vehicles of an image database processed a priori by people in order to model the border separating the different categories of vehicles, - For each input image, extracting its characteristics, then comparing them to those of the different categories extracted in the previous step before returning its category, - A step for retrieving information relative to the vehicle category, at a payment terminal located upstream of the barrier, - A step for payment at said terminal, - A step for switching the barrier to the open position from its closed position once the required amount has been paid. - A step for acquiring at least one image of the vehicle arriving in a lane of the toll station at the barrier, by means of an image acquisition system placed near said lane, - A step for determining a parameter representative of the height of the vehicle, - A step for sending said at least one image and said parameter to at least one server hosted on the Internet, - A step for identifying the category of the vehicle using software located on said at least one server and able to process said at least one image and said parameter in order to retrieve information relative to the category of the vehicle, said software being based on a method consisting of: - Extracting the characteristics of each image from each category of vehicles of an image database processed a priori by people in order to model the border separating the different categories of vehicles, - For each input image, extracting its characteristics, then comparing them to those of the different categories extracted in the previous step before returning its category, - Extracting the characteristics of each image from each category of vehicles of an image database processed a priori by people in order to model the border separating the different categories of vehicles, - For each input image, extracting its characteristics, then comparing them to those of the different categories extracted in the previous step before returning its category, - A step for retrieving information relative to the vehicle category, at a payment terminal located upstream of the barrier, - A step for payment at said terminal, - A step for switching the barrier to the open position from its closed position once the required amount has been paid.