指定方向外進行禁止
Source: Wikimedia Commons / Japan_road_sign_311-B-R.svg / retrieved 2026-07-27
Licence as stated on Commons: Public domain
Author as stated: Fry1989
This figure shows one orientation only; the source file is the -R variant. The Ordinance on Road Signs, Lane Markings and Road Surface Markings also prescribes a mirrored figure.
Sign number: 311-B
The source text is available in Japanese only. No translation is included.