(D) Wrong way entrance on one-way streets and expressway ramps.
Road signs:
- Road signs, often known as traffic signs, are posted along the side of roadways or above them to inform and direct drivers.
- Simple wooden or stone milestones were the oldest types of signs.
- Later, directional signs with arms were developed, such as the fingerposts used in the United Kingdom and their wooden equivalents in Saxony.
- Since the 1930s, as traffic volumes have increased, many nations have adopted pictorial signs or have similarly standardized and simplified their signs in an effort to overcome linguistic barriers and improve traffic safety.
- Such pictorial signals are typically based on international norms and use symbols (often silhouettes) in place of words.
- These signs were initially created in Europe and have since been adopted to varying degrees by the majority of nations.
"Do not enter" road sign:
- You must not move in the direction of the sign if it says "Do Not Enter."
- These signs are there to warn you that opposing traffic is approaching, which is supposed to prevent head-on collisions.
Therefore, the correct answer is (D) wrong way entrance on one-way streets and expressway ramps.
Know more about road signs here:
https://brainly.com/question/9327663
#SPJ2
