Vehicle traffic control system

A vehicle traffic control system comprising:

• vehicles each comprising a travel controller configured to generate a control value to control travel of a corresponding one of the vehicles as a subject vehicle;
• and
• a server apparatus configured to generate individual control information for each of the vehicles based on travel information from the vehicles, and transmit the individual control information to the vehicles, wherein,
• the travel controller of each of the vehicles is configured to, when receiving the individual control information addressed to the subject vehicle from the server apparatus, generate the control value for a travel control of the subject vehicle using the received latest individual control information addressed to the subject vehicle,
• the server apparatus comprises:
• a server communication device configured to receive the travel information from each of the vehicles;
• a pre-processor configured to, when the server communication device receives the travel information, record, in a database, information including at least a travel position of a vehicle that has transmitted the received travel information;
• and
• a control information generator configured to periodically generate the individual control information for each of the vehicles using the information held in the database,
• the pre-processor is configured to:
• determine that the received travel information includes information indicating that the vehicle that has transmitted the received information is a traffic hindrance,
• cause an interrupt in response to determining that the vehicle is the traffic hindrance,
• the server apparatus further comprises an emergency processor configured, in response to the interrupt caused by the pre-processor, to:
• pre-empt next scheduled periodic generation by the control information generator, such that the emergency processor executes prior to that next scheduled periodic generation;
• select one or more vehicles susceptible to an influence of the traffic hindrance;
• and
• generate and transmit, to the selected one or more vehicles, per-vehicle individual control information corresponding to the traffic hindrance, using information held in the database.