Ch. 5 · Driving Method

On an ordinary road with a center line, when no maximum speed is indicated by signs or markings, you must not drive at speeds exceeding 50 km/h.

[True / False · Medium]

Answer: ✕ False

Explanation

On ordinary roads where no maximum speed is indicated by signs or markings, the maximum speed for motor vehicles is 60 km/h on roads that have a center line or traffic lanes and the like, and 30 km/h on other roads (Enforcement Order of the Road Traffic Act, Article 11, in force from September 2026). Since the limit on a road with a center line is 60 km/h, not 50 km/h, this statement is incorrect.

Driving school curriculumStage 1 – Topic 7: Safe speed and following distance

Hikari
Hikari
If there's a center line but no sign, the default limit is fifty, isn't it?
Misaki
Misaki
That's false. On an ordinary road with a center line, the default maximum is sixty km/h for motor vehicles, not fifty.
Hikari
Hikari
Oh wow, I've been playing it too safe then!
Misaki
Misaki
Better safe than sorry, but know the correct numbers—sixty with a center line or lanes, thirty on other unmarked roads.

Source: Ch. 5 Driving Method · Section (第４節 安全な速度と車間距離) · 1(1) 標識や標示で指定されていないときは、時速60キロメートルを超えて運転してはいけません

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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.