Remote operation system

A remote operation system comprising:

• a work machine including
• an imaging device configured to capture a video around the work machine,
• a detection device configured to detect additional information indicating information other than the video among pieces of information indicating at least one of a situation of the work machine or a situation around the work machine, and
• a first communication device configured to transmit the video and the additional information;
• a remote operation room including
• an operation device,
• a second communication device configured to transmit operation information from the operation device to the first communication device and receive the video and the additional information,
• a display device configured to display the video, and
• an output device configured to output the additional information;
• and
• a control device configured to perform control to transmit or receive essential information and the additional information between the first communication device and the second communication device, the essential information including at least one of the video or the operation information and being necessary to operate the work machine, wherein
• the control device controls each of the essential information and the additional information differently based on a communication status between the first communication device and the second communication device.