Work machine control system, work machine, and work machine control method

A work machine control system comprising:

• a position sensor which detects a position of a work machine traveling on a traveling path;
• a first non-contact sensor which is provided in the work machine and detects a position of an object around the work machine;
• a second non-contact sensor which is provided in the work machine and detects a position of the object including a position reference member with a reflectance higher than the reflectance of the rest of the object around the work machine;
• a processor, the processor being configured to:
• create map data on a basis of detection data of the position sensor and detection data of the first non-contact sensor;
• calculate a first position of the work machine by matching the map data and the detection data of the first non-contact sensor;
• calculate a second position of the work machine on a basis of detection data of the second non-contact sensor;
• determine an integrated position of the work machine by integrating the first position and the second position;
• and
• a traveling control device which controls traveling of the work machine on a basis of the integrated position determined by the processor when a detection accuracy of the position sensor deteriorates
• wherein the object detected by the first non-contact sensor includes a bank provided near the traveling path, and
• the object detected by the second non-contact sensor includes the position reference member, also known as a landmark, installed near the traveling path.