Which of the following traffic signs will be placed or marked following traffic sign 144?

- 513
- 821· Correct answer
- 806
- 101

Sign 144 warns of rumble strips further along the road. After it, sign 821 is marked, indicating the actual location of the rumble strip on the road. The other signs are unrelated to rumble strips: 806 - a broken line beside a solid line, 513 - a stopping place for a particular vehicle, 101 - an uneven road.
Sign 144 (rumble strips) = followed by sign 821 (location of the strip)
Confusing the rumble-strip warning sign with other road markings
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