When the grade behind the vehicle slopes
down sharply, objects appear to be closer
than they actually are.
The distance that appears on the screen
between three-dimensional objects (such
as vehicles) and flat surfaces (such as the
road) and the actual distance differ as fol-
lows.
In reality, C = A < B (C and A are equally far
away; B is farther than C and A). However,
on the screen, the situation appears to be A
< B < C.
On the screen, it appears that a truck is
parking about 1.5 ft (0.5 m) away. How-
ever, in reality if you back up to point A, you
will hit the track.
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