Method for guiding traffic flow in vehicle-dense regions based on three-dimensional traffic system

A method for guiding traffic flow in vehicle-dense regions based on a three-dimensional traffic system, said method comprising the steps of:

• (a) remotely controlling a drone to fly above the downstream of a vehicle-dense region, and adjusting a flight status of the drone and an angle of a camera on the drone so that the camera faces stably and directly towards the ground;
• (b) aerially photographing traffic condition information of the vehicle-dense region through drone aerial photography technology, and acquiring by the drone image data information from a captured traffic condition information image, where the image data information comprises road surface status information of the vehicle-dense region, the height of the drone from the ground of the vehicle-dense region, and the distance between the drone and a vehicle at different times;
• (c) determining, by the drone, traffic guidance information for a vehicle upstream to the vehicle-dense region according to the image data information acquired in step (b), where the traffic guidance information comprises a recommended vehicle speed in the traveling of the vehicle, a shortest distance that the driver needs to maintain from a preceding vehicle, and an expected amount of time for the vehicle to pass the dense region;
• (d) transmitting, by the drone, the traffic guidance information determined in step (c) to a vehicle-mounted terminal of an upstream vehicle;
• and transmitting, by a vehicle downstream to the vehicle-dense region, its traffic guidance information to the vehicle-mounted terminal of the upstream vehicle through V2V communication technology;
• (e) weighting, by the vehicle-mounted terminal of the upstream vehicle, the traffic guidance information from the drone and the traffic guidance information from the downstream vehicle, and transmitting a traffic guidance information result from the weighting to a vehicle display;
• and
• (f) maintaining, by a driver of the upstream vehicle, a safe distance from a preceding vehicle according to information displayed on its vehicle display, and driving smoothly according to the recommended vehicle speed until the vehicle leaves the vehicle-dense region.