WD-150
Loose Gravel warns of a gravel surface or fresh loose stone ahead — reduced traction for you, and stone-throw risk for windshields behind and beside you.
Warning signs alert you to hazards or changing conditions ahead.
Slow down before the gravel, increase following distance to escape the dust and stones of the vehicle ahead, and make all steering and braking inputs gentle.
Warning signs are usually yellow diamonds with black symbols. In construction or maintenance zones they are orange instead of yellow.
Same physics the exam tests for gravel roads generally: longer stopping distances, easier skids, and reduced visibility in dust — the answer is always more space and less speed.
Road signs are one of the five areas the 30-question Alberta Class 7 knowledge test covers, and the largest block in our mock exam at 8 questions. Learn the sign here, then put it into exam-style questions next to the right-of-way and graduated-licensing rules it shares the test with.
Also useful: how many questions are on the test · every Alberta road sign
Sign image courtesy of the Government of Alberta, used under the Open Government Licence – Alberta. Pass Your Learner's is not affiliated with the Government of Alberta.
