  We study a behavior of quantum generalized affine parameter (QGAP), which has
been recently proposed by one of the present authors, near the singularity and
the event horizon in three and four spacetime dimensions in terms of a
minisuperspace model of quantum gravity. It is shown that the QGAP is infinite
to the singularity while it remains finite to the event horizon. This fact
indicates a possible interpretation that the singularity is wiped out in
quantum gravity in this particular model of black hole.
