TIBIA PAD AND TIBIA PAD INSTALLATION STRUCTURE

A peak value of a tibia index is further reduced. A tibia pad (10) has: a right foot placement portion (16) having a right side horizontal portion (16A) that is positioned beneath and at a rear of an accelerator pedal (22) provided at a vehicle and on which is placed a heel of a right foot of a passenger who is stepping-on the accelerator pedal (22), and a right side inclined portion (16B) that is formed integrally with a vehicle front side of the right side horizontal portion (16A) and that is positioned beneath the accelerator pedal (22); and a rib (26) that is formed at least at a bottom surface of the right side horizontal portion (16A) at the right foot placement portion (16) by a region between a pair of groove portions (24) that are formed so as to extend along a vehicle longitudinal direction and so as to be lined-up in a vehicle transverse direction, and that is provided at a position that is offset toward a vehicle transverse direction one side with respect to a central line (L1) that passes-through a vehicle transverse direction central portion of the accelerator pedal (22).