Traveling Control Device

Provided is a traveling control device capable of appropriately controlling the turning and the speed of a traveling vehicle. A traveling control device of a traveling vehicle including a traveling control unit having a pair of left and right configurations capable of respectively driving a pair of left and right driving wheels includes: an instruction receiving portion that receives an operation instruction directed to each of the pair of left and right driving wheels; a speed instruction value calculation portion that calculates a speed instruction value that is to be instructed to the traveling control unit, based on each of the operation instructions; an operation instruction determination portion that determines, based on each of the operation instructions, whether the operation instruction is an operation instruction to rotate the pair of left and right driving wheels in the same direction as each other, or an operation instruction to rotate the pair of left and right driving wheels in different directions from each other; and a speed instruction value correction portion that corrects, if the operation instruction is an operation instruction to rotate the pair of left and right driving wheels in the same direction as each other, one of the speed instruction values calculated for the traveling control unit by the speed instruction value calculation portion, based on the other speed instruction value.