# 道路交通法 / Road Traffic Act — 第三十七条の二 (Article 37-2)

- Law: 道路交通法 (Road Traffic Act), 昭和三十五年法律第百五号
- English title "Road Traffic Act": Ministry of Justice translation
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第三十七条の二 (Article 37-2)（環状交差点における他の車両等との関係等） — address `art-37-2`
- Text in force since: 2026-07-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/road-traffic-act/art-37-2
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/335AC0000000105/art-37-2
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

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### 第三十七条の二（環状交差点における他の車両等との関係等） — (Interacting with Other Vehicles and Streetcars in Roundabouts)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-37-2 · https://japanlaw.org/ja/road-traffic-act/art-37-2 · https://japanlaw.org/l/335AC0000000105/art-37-2</sup>

  **第一項**  車両等は、環状交差点においては、第三十六条第一項及び第二項並びに前条の規定にかかわらず、当該環状交差点内を通行する車両等の進行妨害をしてはならない。
  <sup>art-37-2/par-1 · https://japanlaw.org/ja/road-traffic-act/art-37-2/par-1 · https://japanlaw.org/l/335AC0000000105/art-37-2/par-1</sup>
  Notwithstanding Article 36, paragraphs (1) and (2) and the preceding Article, a vehicle or streetcar in a roundabout must not obstruct the progress of other vehicles and streetcars in the roundabout.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  車両等は、環状交差点に入ろうとするときは、第三十六条第三項の規定にかかわらず、徐行しなければならない。
  <sup>art-37-2/par-2 · https://japanlaw.org/ja/road-traffic-act/art-37-2/par-2 · https://japanlaw.org/l/335AC0000000105/art-37-2/par-2</sup>
  Notwithstanding Article 36, paragraph (3), a vehicle or streetcar must reduce speed when entering a roundabout.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第三項**  車両等は、環状交差点に入ろうとし、及び環状交差点内を通行するときは、第三十六条第四項の規定にかかわらず、当該環状交差点の状況に応じ、当該環状交差点に入ろうとする車両等、当該環状交差点内を通行する車両等及び当該環状交差点又はその直近で道路を横断する歩行者に特に注意し、かつ、できる限り安全な速度と方法で進行しなければならない。
  <sup>art-37-2/par-3 · https://japanlaw.org/ja/road-traffic-act/art-37-2/par-3 · https://japanlaw.org/l/335AC0000000105/art-37-2/par-3</sup>
  Notwithstanding Article 36, paragraph (4), when about to enter a roundabout and when traveling in it, the driver of a vehicle or streetcar must pay particular attention to vehicles and streetcars about to enter the roundabout, vehicles and streetcars traveling in the roundabout, and pedestrians crossing the road at or in the immediate vicinity of the roundabout, and must proceed at the safest possible speed and in the safest possible manner, in keeping with the conditions at the roundabout.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-37-2/par-1: 第三十六条第一項 → 道路交通法 第三十六条第一項 (Article 36, paragraph (1)), art-36/par-1 — https://japanlaw.org/ja/road-traffic-act/art-36/par-1 · https://japanlaw.org/l/335AC0000000105/art-36/par-1
- art-37-2/par-1: 第二項 → 道路交通法 第三十六条第二項 (Article 36, paragraph (2)), art-36/par-2 — https://japanlaw.org/ja/road-traffic-act/art-36/par-2 · https://japanlaw.org/l/335AC0000000105/art-36/par-2
- art-37-2/par-1: 前条 → 道路交通法 第三十七条 (Article 37), art-37 — https://japanlaw.org/ja/road-traffic-act/art-37 · https://japanlaw.org/l/335AC0000000105/art-37
- art-37-2/par-2: 第三十六条第三項 → 道路交通法 第三十六条第三項 (Article 36, paragraph (3)), art-36/par-3 — https://japanlaw.org/ja/road-traffic-act/art-36/par-3 · https://japanlaw.org/l/335AC0000000105/art-36/par-3
- art-37-2/par-3: 第三十六条第四項 → 道路交通法 第三十六条第四項 (Article 36, paragraph (4)), art-36/par-4 — https://japanlaw.org/ja/road-traffic-act/art-36/par-4 · https://japanlaw.org/l/335AC0000000105/art-36/par-4

## Cited by

1 provision cites this one. No official source publishes this direction.

- 道路交通法 第百十九条第一項第六号 — https://japanlaw.org/ja/road-traffic-act/art-119/par-1/item-6 · https://japanlaw.org/l/335AC0000000105/art-119/par-1/item-6

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 道路交通法 — the text in force from 2026-07-21 (https://laws.e-gov.go.jp/law/335AC0000000105/20260721_508AC0000000052), retrieved 2026-10-13
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Road Traffic Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/2962/tb), retrieved 2026-10-13
- This site's parser, version 190 — 道路交通法 — structure, counts, cross-references and defined terms, computed 2026-10-13
