A method for regulating road traffic in which each vehicle of at least one portion of vehicles carries on board a connected device and a user interface connected to the connected device. The method includes: obtaining, from at least the connected devices, at least one datum relating to movement of at least one vehicle of the plurality; identifying a traffic situation based on the data; and based on the identified traffic situation, generating respective recommendation messages to be transmitted to the respective user interfaces, where applicable, each recommendation message including at least one instruction to be adopted by at least one vehicle of the at least one portion of the vehicles and/or by at least one connected device that is not carried on board the vehicles, to streamline the traffic situation. The at least one datum including, for each connected device, a score associated with the connected device.