; (II) an individual on a bicycle, whether such individual is a pedal­cyclist or riding a low-speed electric bicycle; (III) an individual with a disability; or (IV) an individual using a mobility device (including a wheelchair, walker, or scooter, whether motorized or non-motorized). (iii) Vulnerable user fatality The term vulnerable user fatality means a transportation-related fatality of an individual while such individual is a vulnerable user. .