Ch. 1 · Common Conduct

In a location where there is a "Sound Horn" sign, you must sound your horn, but this is classified as a regulatory sign rather than an indication sign.

[True / False · Hard]

Answer: ✓ True

Explanation

"Sound Horn" is a regulatory sign. Regulatory signs prohibit or restrict certain ways of using the road, or order road users to follow a set method; because this sign orders you to sound your horn, it is a regulatory sign. The statement is therefore correct.

Driving school curriculumStage 1 – Topic 2: Following traffic signals

Hikari

A 'Sound Horn' sign feels like it's just telling you where to honk, so wouldn't that be an indication sign?

Yui

I see why you'd think that, but because it orders you to do something—honk your horn—it's actually a regulatory sign, so the statement is true.

Hikari

Wait, so any time a sign commands an action, it's regulatory?

Yui

Exactly! Orders or bans = regulatory. Just showing a location or permission = indication.

Source: Ch. 1 Common Conduct · Section (第２節信号) · Rules of the Road, Ch.1 §2 / 2(3) Indication signs indicate that a particular traffic behavior is permitted, or that a location has a specific traffic designation. Types and meanings are listed in Appendix 3(1).

🤖 Dig deeper with AI

Send this question's context to ChatGPT for a richer explanation. The prompt also asks the AI to point you back to this chapter's practice quiz.

🚀 Ask ChatGPT

If the button doesn't open ChatGPT, tap Copy and paste it into Claude, Gemini, or any other LLM you prefer. On a free plan, Claude (claude.ai) tends to produce more accurate explanations that respect this site's content.

← Back to all Ch. 1 questions

See the glossary for definitions of key terms.

Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.