Osaka Metro Level 4 Autonomous Expo Shuttle

🤖 AI-generated summary · 🔎 Last verified 2026-07-26

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Japan's first Level 4 approval for a large bus on ordinary roads drove itself on only part of the Expo route, with a supervisor aboard. The operator later booked a 6.7 billion yen loss on the fleet.

Outcome📉 Scaled back

Evidence🏛️ Official

what does this mean?

The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →

Run byOsaka Metro Co., Ltd. (buses built by EV Motors Japan)

Scale🧪 Pilot

Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 8 more in Osaka · 🚗 Autonomous vehicles guide · 🚲 Mobility projects

On 18 February 2025 Osaka Metro won Level 4 approval for a full-size 10.45 m electric bus, which it calls Japan's first for a large bus on ordinary roads. The bus carried Expo 2025 visitors on the 10.5 km Maishima park-and-ride shuttle to Yumeshima from 13 April to 13 October 2025, driving itself only on the Maishima section, with a supervisor aboard and a remote monitoring centre watching. Autonomous running was suspended from 29 April to 25 June after a bus touched a retaining wall while being repositioned manually. The service ended with the Expo.

Completed 📅 2025 🤖 Uses AI

📊 Impact

Osaka Metro booked a 6.7 billion yen extraordinary loss in the year to March 2026 — a 3.7 billion yen impairment plus 3.0 billion set aside to repay government subsidies — after giving up on reusing the 190 buses the Expo shuttles came from.

🎓 Lesson

A regulatory first is not an operating record: the approval was real, the route was partly manual, and the fleet behind it was written off within a year.

🚲 Mobility Autonomous vehicles Public transport

Sources

↗ Osaka Metro (operator) — Level 4 approval18 February 2025: Level 4 vehicle approval from the ministry's Kinki District Transport Bureau for a 10.45 m electric bus; the operator claims Japan's first for a large electric bus on ordinary roads, while the ministry's own release claims only a regional first.

↗ Osaka Metro (operator) — route and operationRoute from the Maishima park-and-ride to Yumeshima Terminal 1, Level 4 only on the Maishima section, 13 April to 13 October 2025, with an on-board autonomous-operation supervisor and a remote monitoring centre.

↗ Expo 2025 Osaka, Kansai (organiser) — incident notice28 April 2025: a bus contacted a roughly 50 cm concrete retaining wall while being repositioned in manual mode, no passengers aboard, operator unhurt; all five autonomous buses stopped from 29 April.

↗ Osaka Metro (operator) — resumption noticeResumption on 25 June 2025; cause given as a communication-speed setting error in the automated system's reset processing; two buses restarted with a driver plus a support staff member.

↗ Nikkei (press) — write-off14 May 2026 earnings: a 6.7 billion yen extraordinary loss (3.7 billion impairment plus a 3.0 billion subsidy-repayment reserve) after abandoning future use of the 190 electric buses.

Continue exploring

Compare this project

🇯🇵 OSAKAKO Vertiport · Osaka Two Expo 2025 showcases from the same operator: the air taxis never carried payers, the Level 4 bus stopped when the Expo closed. 🇫🇮 Sohjoa / Sohjoa Baltic Autonomous Minibus Pilots · Helsinki Pilots that ended with their funding: Sohjoa closed with the EU project in 2019; Osaka's shuttle closed with the Expo in October 2025. 🇯🇵 Haneda Innovation City Level 4 Autonomous Bus · Tokyo Japan's Level 4 buses, opposite fates: Haneda's loop became a standing service; Osaka's Expo shuttle ended and the buses were written off.

Explore the wider context

🔑 Your Smart City Is Owned by Someone Else 📖 CBTC (communications-based train control)📖 Grades of Automation (GoA)📖 Personal rapid transit (PRT)

📎 Cite this project

1001 Smart Cities (2026). “Osaka Metro Level 4 Autonomous Expo Shuttle” — Osaka, Japan. The Smart City Atlas. https://1001smartcities.org/projects/osaka-metro-level4-expo-bus/ (last verified 2026-07-26). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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