Area monitoring system and area monitoring method

An area monitoring method comprising:

• analyzing, by a computer, an image captured by a plurality of sensor devices installed in fixed positions where at least part of a monitoring target area can be imaged;
• performing, by the computer, image analysis processing on images captured by each of the plurality of sensor devices;
• analyzing, by the computer, a surrounding condition of the plurality of sensor devices based on results of the image analysis processing;
• managing, by the computer, a movement situation of a mobile object moving on a road included in the monitoring target area on the basis of an analysis result;
• providing, by the computer, prescribed information to the mobile object;
• assigning, by the computer, common identification information to mobile objects whose shapes match a threshold or higher in the images captured by the plurality of sensor devices obtained as a result of the image analysis processing;
• tracking, by the computer, the movement situation of the mobile object, including its speed and direction of movement, from the images captured by the plurality of sensor devices for each of the assigned common identification information, and determining that the mobile object is likely to deviate from the road if it determines that the mobile object is likely to cross a road dividing line within a predetermined time period based on the speed and direction of movement of the mobile object and a positional relationship between the mobile object and the road dividing line around the mobile object;
• and
• facilitating, by the computer, a control of the mobile object according to an action instruction based on causing an information providing device installed near the mobile object to output information indicating an action instruction to the mobile object when the mobile object is likely to depart from the road on.