WORK VEHICLE

A self-driving work vehicle includes: a front wheel unit; a rear wheel unit including a left rear wheel and a right rear wheel; a variable traveling power supply apparatus that supplies rotational drive power to the left rear wheel and the right rear wheel independently; a left operation implement (12a) movable along a first path (L1) to adjust a rate of the rotational drive power to be supplied to the left rear wheel from the variable traveling power supply apparatus; a right operation implement (12b) movable along a second path (L2) to adjust a rate of the rotational drive power to be supplied to the right rear wheel from the variable traveling power supply apparatus; a parking brake provided for the variable traveling power supply apparatus; and a controller configured or programmed to cause a parking brake operating module to operate the parking brake in response to (i) the left operation implement (12a) being moved to a third path (L3) branching from the first path (L1) and (ii) the right operation implement (12b) being moved to a fourth path (L4) branching from the second path (L2).