Abstract: A conveyer for transporting people includes a transmitting mechanism for transmitting the drive force of a treadboard driving section for moving treadboards to a drive mechanism of a handrail driving section for moving handrails. The transmitting mechanism includes a transmission shaft on which first and second junction sprockets are fixed, a first drive chain stretched between the treadboard driving section and the first junction sprocket, and a second drive chain stretched between the second junction sprocket and the drive mechanism. A detecting device is arranged to detect a twist of the transmission shaft attributable to the difference between loads acting on the first and second junction sprockets. The device detects a change in the moving sped of the handrail in accordance with the detected twist of the shaft.