Ch. 10 · Accidents & Disaster

When parking unavoidably on an expressway, you may place a breakdown warning device behind the vehicle at night and turn on the hazard lights, parking lights, or tail lights.

[True / False · Medium]

Answer: ✕ False

Explanation

The Rules of the Road state that you "must turn them on" as a legal obligation. It is not expressed as permission or an option using "may," but as a mandatory requirement. The correct expression is "must turn them on."

Driving school curriculumStage 2 – Topic 13: Responding to traffic accidents

Hikari

So at night you 'may' use the warning device and lights—sounds like you have a choice.

Momoka

Nope, that's false! The rule says you 'must' turn them on—it's a legal requirement, not an option.

Hikari

Oh, the wording totally tricked me!

Momoka

Right? 'May' feels like permission, but on expressways at night those lights and devices are mandatory!

Source: Ch. 10 Accidents & Disaster · Section (第2節故障などのとき) · Rules of the Road, Ch.10 §2 (Breakdowns) — Move the vehicle to a safe location off the roadway if possible, switch on hazard lamps, place a warning triangle, and signal to following vehicles. On expressways, also use emergency phones and stay outside the guard rail.

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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.