A transport system comprising: an endless driving medium configured to rotate in a circulating manner; a plurality of carriers attached to the endless driving medium and configured to hold articles for transportation; a plurality of stations provided along the endless driving medium; and a moving distance sensor (enc) configured to measure moving distance of the endless driving medium, the stations each comprising: a hand configured to load articles to and unload articles from the carriers; a driver configured to move the hand both in a rotation direction of the endless driving medium and in a vertical direction; a first carrier sensor configured to detect one of the carriers at a predetermined position upstream of the hand along the rotation direction of the endless driving medium; a second carrier sensor for detecting said on of the carriers a position downstream of the first carrier sensor; and a signal processor configured to make the driver drive the hand based on moving distance measured by the moving distance sensor (enc), from detection of the carrier by the first carrier sensor; the signal processor being also configured for evaluating a difference between moving distance measured by the moving distance sensor (enc) from detection of said one of the carriers by the first carrier sensor and a distance between the first carrier sensor and the second carrier sensor at the second carrier sensor detecting said the carrier, and if the difference is beyond an allowable value, the signal processor stopping movement of the hand by the driver. an endless driving medium configured to rotate in a circulating manner; a plurality of carriers attached to the endless driving medium and configured to hold articles for transportation; a plurality of stations provided along the endless driving medium; and a moving distance sensor (enc) configured to measure moving distance of the endless driving medium, the stations each comprising: a hand configured to load articles to and unload articles from the carriers; a driver configured to move the hand both in a rotation direction of the endless driving medium and in a vertical direction; a first carrier sensor configured to detect one of the carriers at a predetermined position upstream of the hand along the rotation direction of the endless driving medium; a second carrier sensor for detecting said on of the carriers a position downstream of the first carrier sensor; and a signal processor configured to make the driver drive the hand based on moving distance measured by the moving distance sensor (enc), from detection of the carrier by the first carrier sensor; a hand configured to load articles to and unload articles from the carriers; a driver configured to move the hand both in a rotation direction of the endless driving medium and in a vertical direction; a first carrier sensor configured to detect one of the carriers at a predetermined position upstream of the hand along the rotation direction of the endless driving medium; a second carrier sensor for detecting said on of the carriers a position downstream of the first carrier sensor; and a signal processor configured to make the driver drive the hand based on moving distance measured by the moving distance sensor (enc), from detection of the carrier by the first carrier sensor; the signal processor being also configured for evaluating a difference between moving distance measured by the moving distance sensor (enc) from detection of said one of the carriers by the first carrier sensor and a distance between the first carrier sensor and the second carrier sensor at the second carrier sensor detecting said the carrier, and if the difference is beyond an allowable value, the signal processor stopping movement of the hand by the driver.