Traveling body, traveling system and traveling control method

A traveling system comprising:

• a position detector that detects a position of a first traveling body while the first traveling body travels along a guide member laid on a traveling route;
• a determination processor that determines whether or not the first traveling body has been derailed from the guide member;
• a traveling controller that controls the first traveling body to return to a position of the guide member, when the determination processor determines that the first traveling body has been derailed from the guide member;
• and
• an output processor that outputs information regarding a derailment position where the first traveling body has been derailed from the guide member and an instruction to switch to low-speed traveling, to a second traveling body following the first traveling body, when the determination processor determines that the first traveling body has been derailed from the guide member.

A traveling control method to be executed by one or a plurality of processors, the method comprising:

• detecting a position of a traveling body while the traveling body travels;
• controlling switching between a first traveling method for traveling the traveling body along a guide member laid on a traveling route by detecting a guide member and a second traveling method for traveling the traveling body based on the position detected by the detecting without depending on the guide member;
• and
• determining a detection state of the guide member, and wherein
• in the controlling, when it is determined by the determining that the detection state of the guide member is a state in which the traveling body cannot travel by the first traveling method, the first traveling method is switched to the second traveling method.