An automobile includes a traffic information acquisition device that acquires traveling vehicle information, and traffic information from a traffic information management center that manages traffic obstacle information on an obstacle on a road, a display device that displays surroundings map information of a subject vehicle together with a mark showing a current position of the subject vehicle, and a control device. The control device reflects a decorative image based on surroundings traffic obstacle information in the surroundings map information and displays the decorative image on the display device, and associates, with the decorative image, an involved vehicle number image on an involved vehicle number, and displays the involved vehicle number image on the display device. The involved vehicle number is the number of vehicles in the traveling vehicle information involved in the traffic information related to the decorative image.

A system for determining a content of a message used to coordinate interactions among vehicles can include a processing device and a memory. The memory can store a discretization module and a communications module. The discretization module can include instructions that when executed by the processing device cause the processing device to: (1) analyze a critical maneuver trajectory of an ego vehicle and a current trajectory of another vehicle to determine an existence of a critical maneuver situation and (2) produce a discretized representation of a portion of the critical maneuver trajectory of the ego vehicle. A form of the discretized representation can be based on the existence of the critical maneuver situation. The communications module can include instructions that when executed by the processing device cause the processing device to communicate the discretized representation as the content of the message used to coordinate interactions among vehicles.

A message transmission method for a roadside equipment includes the following steps. A plurality of external sensor information is received. A road intersection sign phase information and a road map information are inputted. An object position analysis, a speed analysis, and an sign analysis in object moving direction are performed based on the external sensor information, the road intersection sign phase information, and the road map information, and a classification of dangerous objects in different groups is outputted. According to a current transmission bandwidth limitation and the classification of the dangerous objects, a dangerous object message with a higher classification of the dangerous objects is preferentially selected and transmitted within available transmission bandwidth.

Among other things, an equipment for use on board a first ground transportation entity has (a) a receiver for information generated by a sensor of the environment of the first ground transportation entity, (b) a processor, and (c) a memory storing instructions executable by the processor to generate and send safety message information to a second ground transportation entity based on the information generated by the sensor.

A vehicle speed control method, an apparatus, a device and a storage medium applied to a vehicle. The method includes: receiving (S210) a speed limit command sent by a speed control device, where the speed limit command includes a speed limit, and the speed limit command is generated by the speed control device when it is determined a position of the vehicle is in an area where an accident occurrence rate is greater than or equal to a preset threshold; reducing (S220) a travelling speed of the vehicle to less than the speed limit in response to the speed limit command. According to the vehicle speed control method, vehicle speed can be controlled according to actual safety situation on a road, thereby improving safety of vehicle travelling.

A driving assistance system for a road includes a number of communication units along the road. Each communication unit is able to transmit traffic data to vehicles on the road in a respective communication area. The communication units are arranged along the road so that the set of communication units presents a continuous coverage of the entire road. The traffic data of each communication unit is specific to that communication unit. The traffic data includes or is at least partially derived from traffic information detected on the road. There is an associated assistance method.

Various embodiments include method performed by a processor of a roadside unit (RSU) processing system for controlling a message transmissions. In various embodiments, the RSU processing system may receive vehicle-to-everything (V2X) information from a vehicle, determine, based on the received V2X information, a minimum reception distance at which the vehicle or operator of the vehicle will reliably receive a message from the RSU and have time for the vehicle to react to the message, determine a transmission power level based on the determined minimum reception distance, and transmit the message to the vehicle using the determined transmission power level. In various embodiments, the RSU processing system may determine the transmission power level taking into account vehicle speeds, vehicle locations, road conditions, weather conditions and/or the type of message being transmitted.

Provided are a driving negotiation method and apparatus for supporting stability against a blind spot, an unexpected situation, etc. and a rapid judgment and response of an autonomous vehicle in various driving environments. The driving negotiation apparatus includes a wireless communication module configured to support vehicle to everything (V2X) communication and at least one processor connected to the wireless communication module. The at least one processor receives a cooperative request message from a first vehicle, broadcasts a cooperative request message and additional information required for a negotiation to surrounding vehicles, receives a cooperative response message from at least one second vehicle among the surrounding vehicles, and transmits a message indicating that the negotiation is possible or impossible to the first vehicle on the basis of the cooperative response message.

A system and method for providing increased traffic carrying capacity of a road, such as a highway, by modifying an existing roadway from, for example, four lanes to five lanes, to create an additional travel lane. The system and method dynamically changes the width of travel lanes using, for example, embedded pavement lights, or other lighting arrangements, in lieu of traditional painted lane lines. As traffic volumes increase and speeds decrease along the road, an intelligent transport system (ITS) sends a congestion signal to the overhead lane controls and dynamic message signs (DMS) along the entire road segment of interest. The posted speed limits are changed, and the lane markings are controlled to dynamically increase the number of lanes in the road segment to five, for example, of narrower widths until traffic volumes reduce and the number of lanes can be returned to four, for example, with normal speed limits.

A method for identifying potential hazard zones in road traffic by vehicles connected to a central computer unit involves recording an incident indicative of a potential hazard zone and transmitting it to the central computer unit with its geolocation. The transmitted incident is listed as a hotspot in a digital map if there are a large number of similar incidents with the same geolocation. Contextual information is added to the transmitted incident. The hotspot is analyzed for the identification of a potential hazard zone, a current hotspot is compared with confirmed hotspots, the hotspots are visualized on a platform, with a geolocation of a hotspot-confirmed traffic critical incident being transmitted to an authority to be checked and/or as a warning message to a vehicle currently near such an analyzed hotspot.