Steep hill / downgrade ahead (18%) sign

What does the Steep hill / downgrade ahead (18%) sign mean?

A steep 18 percent downgrade is ahead; trucks should use caution.

Other Warning signs

Dangerous goods: flammable

TDG-FLAMMABLE

Curve to the right

CURVE-RIGHT

Hairpin curve

HAIRPIN-CURVE

Practice with real test questions

Take a free knowledge-test practice round in your province. Sign-recognition questions are heavily represented on every Canadian provincial test.