Road signs in Japan
road signs used in Japan
Road signs in Japan are standardized by the "Order on Road Sign, Road Line, and Road Surface Marking (道路標識、区画線及び道路標示に関する命令)" established in 1968 with origins from the Tokyo Metropolitan Police Department's "Order on Standardization of Road Sign" of 1934 and the Home Ministry of Japan's "Order on Road Signs" of 1942. The previous designs have been used since 1986 after several amendments of order.
They are divided into "Principal Sign" (本標識, hon-hyōshiki) and "Supplemental Sign" (補助標識, hojo-hyōshiki).
History
The first standardised road signage schemes appeared in 1922. At first, two types of signs were established: "road warning signs" equivalent to warning signs and "road guide signs" as information signs.
Warning signs at that time closely resembled the British design as used in Hong Kong, the only difference was the white-on-black lettering.
Japanese road signs in the early 1940s closely followed European road signage practices at that time based on the 1931 Geneva Convention, except that most road signages contained text. A variation of the early 1940s Japanese road signage system is still in use today in Taiwan.
In 1950, a complete revision of the "Road Signs Ordinance" was promulgated and enforced as an Ordinance of the Prime Minister's Office and the Ministry of Construction. Unlike the 1922 and the 1940s devised road signs, it included both bilingual Japanese and English text and symbols.
This brief starts where responsible research should: with the source description of “Road signs in Japan” as road signs used in Japan. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as road signs used in Japan. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 21, 2026. The linked authority identifier is Q4247861. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1968, 1934, 1942 and 1986.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Road signs in Japan”, its source revision and the description used here.
- Expand the search: follow Road signs in Japan primary sources, Road signs in Japan archive and Road research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Road signs in Japan”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Road signs in Japan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.