Warning, Construction & Information Signs
What does this sign warn you about?
- AA steep downgrade is ahead, where trucks may move slowly.
- BTrucks must leave the road at a weigh station ahead.
- CTrucks may enter or cross the road ahead.
- DTrucks must use the right lane on the road ahead.
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Correct answer: C. Trucks may enter or cross the road ahead.
Why
This yellow diamond warns that trucks may enter or cross the road ahead, for example from a quarry, plant or side road where you might not expect them. Slow down, watch for trucks that pull out, and be ready to stop. Trucks start slowly and need a lot of room. A truck on a downward slope is a different sign: it warns of a steep hill.
Why the other answers are not correct
- A. Wrong: a steep downgrade is shown by a truck on a slope, not a truck on level ground.
- B. Wrong: weigh stations are shown on guide signs with words; this warning sign does not give an order.
- D. Wrong: a lane rule for trucks is given on a white regulatory sign with words, not on a yellow warning diamond.
Verified against Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition with Revision 1 · Section 2C.54 Vehicular Traffic Warning Signs (W8-6, W11-1, W11-5, W11-8, W11-10, W11-11, W11-12P, W11-14, W11-15, and W11-15a) · p. 232
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