To calculate a proper alignment geometry to allow regulation, in a vehicle having a problem such as a vehicle damaged in its body in the past, a vehicle having a lateral difference generated in a repairing or manufacturing process and a vehicle deteriorated in a suspension unit.

An individual error of the alignment geometry in each wheel is known by measuring a heat generation amount, using heat generation of a tire generated in a single flow of the tire, to facilitate the alignment regulation for the each wheel. The vehicle regulation-incapable hitherto such as the vehicle having a repairing history in the past, the vehicle deteriorated in the suspension unit and the vehicle with the lateral difference generated in the repairing or manufacturing process can thereby be alignment-regulated to contribute widely to a factory and an individual person usefully.