A solid-state image sensor has a plurality of pixel units, each pixel unit including a plurality of pixels, and a charge-voltage converter shared by the plurality of pixels. The dimension Ws in the tire width direction of the shoulder rib road contact surface and the dimension Wa in the tire width direction of the sacrificial rib road contact surface are set such that 0. A next step includes scanning for other suitable carriers within the area to substitute for those unsuitable carriers found in the determining step. Methods are also provided for capturing at least one animal by providing a trap with a gate, positioning the gate in an open position, monitoring the trap until at least one animal has entered the trap, and remotely triggering the gate to move from the open position to a closed position.