“Underinsured motor vehicle” is defined as “a land motor vehicle or trailer of any type to which a bodily injury liability bond or policy applies at the time of the accident buts its limit for bodily injury liability is less than the limit of liability for this coverage.” This, in effect, allows an insured to recover, up to the limit of liability scheduled for underinsured motorists coverage, the difference between his or her actual damages for bodily injury and the amount of the liability insurance carried by the at-fault driver.