Control server and control system

A control system comprising:

• a data server configured to obtain pressure information, which includes a value representing pressure received from a vehicle running on a road, from a pressure sensor installed in a stop position on the road corresponding to each of a plurality of traffic signals;
• and
• a control server configured to:
• obtain the pressure information from the data server;
• based on the pressure information, obtain abrupt braking information on an abrupt braking operation performed by the vehicle running on the road;
• and
• based on the abrupt braking information, generate a control signal for controlling the plurality of traffic signals.

A control system configured to control a plurality of traffic signals installed on a road, comprising:

• a plurality of pressure sensors installed at stop positions on the road corresponding to the plurality of traffic signals, and configured to output pressure information which includes a value representing pressure received from a vehicle running on the road;
• and
• a control server, wherein the control server functions as:
• a pressure information obtainer configured to obtain the pressure information, and to store the pressure information in a storage unit;
• an abrupt braking information obtainer configured to, based on the pressure information stored in the storage unit, obtain abrupt braking information on an abrupt braking operation performed by the vehicle running on the road, and configured to store the abrupt braking information in the storage unit;
• and
• a traffic signal controller configured to, based on the abrupt braking information stored in the storage unit, generate a control signal for controlling the plurality of traffic signals.