Tokyo’s Free Umi no Mori Autonomous Bus Resumes 19 September: Timetable, Stops & What Changed
Tokyo is putting its free autonomous shuttle between Shin-Kiba Station and Umi no Mori Park back into autonomous operation from Saturday 19 September 2026. The practical bit: there is no reservation, the fare is still free, and the published timetable gives five departures in each direction.
The short version: autonomous operation resumes on 19 September after Tokyo reviewed the February contact accident, implemented recurrence-prevention measures with a new operator and had those measures checked by experts. The shuttle remains free and reservation-free, runs between the Shin-Kiba Station forecourt and Umi no Mori Park’s Central Entrance side of the car park, and is scheduled to operate through 31 March 2027, excluding the New Year period.
1. Autonomous operation returns from 19 September
Tokyo Metropolitan Government’s Bureau of Port and Harbor says the shuttle will return to autonomous operation on Saturday 19 September 2026. The service connects Shin-Kiba Station with Umi no Mori Park in Tokyo Bay and is intended to improve access to a large waterfront park that is not directly served by rail.
The route itself is not new. Tokyo opened the free shuttle when Umi no Mori Park had its grand opening in March 2025, then switched the service to an autonomous vehicle from July 2025. What is new is the resumption of autonomous running after the system was suspended following a contact accident in Shin-Kiba in February 2026.
Tokyo says it carried out driving verification under a new operating company during the 2026 fiscal year. Experts then confirmed that the recurrence-prevention measures had been appropriately implemented, clearing the way for autonomous operation to restart.
The published operating period now runs from 19 September 2026 to 31 March 2027, excluding the New Year holiday period. If you are visiting around late December or early January, check the live service information before building the shuttle into your plans.
2. Five departures each way — and a long gap around lunchtime
The timetable is simple enough to screenshot, but it is not a high-frequency city bus. Tokyo lists five departures in each direction:
The biggest planning trap is the gap between the two morning departures and the afternoon service. Miss the 10:30 from Shin-Kiba and the next published departure is 14:00. In the other direction, the timetable also has a sizeable gap after the 10:00 departure from the park.
At Shin-Kiba, the stop is in the station-front rotary. At Umi no Mori Park, the stop is inside the park car park on the Central Entrance side. Tokyo’s current notice says you can simply turn up: no advance reservation is required.
The ride is free. That makes it a useful access option for residents and visitors, but the low frequency means you should still treat it like a timed shuttle rather than something you can catch whenever you finish wandering the park.
3. “Autonomous” does not mean driverless
The shuttle operates at Level 2 autonomous driving. A driver remains on board and can take over in emergencies or when conditions require manual control. This is assisted automated driving, not a driverless robot bus.
Tokyo lists capacity as 15 seated passengers, or up to 25 passengers when standing passengers are included. There is an important operational detail: if passenger numbers exceed the available seats and people need to stand, the bus is operated manually rather than in autonomous mode.
That distinction matters if part of the appeal for you is experiencing the autonomous system itself. A busy departure can still get you to the park, but you are not guaranteed that every kilometre will be driven autonomously.
The current operator is Advanced Mobility Co., Ltd., with Hinomaru Motor Tourism listed as the subcontracted operating company. Tokyo notes that another vehicle may be used on maintenance days, so the exact bus you see is not guaranteed.
4. The February accident is why this resumption comes with extra scrutiny
Tokyo’s announcement does not pretend the pause was routine. In February 2026, the shuttle was involved in a contact accident in Shin-Kiba. The metropolitan government reviewed the incident with experts and published the cause and recurrence-prevention measures in March.
Rather than simply restarting the same setup, Tokyo says a new operating company carried out driving verification in the new fiscal year. Experts then checked whether the prevention measures had been put in place appropriately before the autonomous service was cleared to return.
For passengers, the key point is that the route continued to have a transport function even while autonomous operation was suspended; the 19 September change is specifically about restoring autonomous driving on the service.
If weather, maintenance, traffic or another operational issue forces a change, the bus may run manually, use a different vehicle or have altered service. For a trip where getting back to Shin-Kiba at a particular time matters, check the project’s live notices on the day rather than relying only on this timetable.
5. Three practical things to know before using it
First: Shin-Kiba is the rail interchange. The station is served by the JR Keiyo Line, Tokyo Metro Yurakucho Line and Rinkai Line. That makes the shuttle reasonably easy to connect with from central Tokyo, Odaiba-side districts and the eastern waterfront — but the shuttle itself is the final leg.
Second: plan the return before you arrive. Umi no Mori is a large park and the service is sparse. A relaxed walk can turn into a long wait if you miss the 16:00 and are counting on the 17:00 final published departure.
Third: free does not mean frequent. The service is a very good fit for a park visit when its departure times align with your day. It is a much worse fit if you have a fixed dinner, airport transfer or other time-critical booking immediately afterwards. Leave a buffer or have an alternative route in mind.
If the autonomous technology is the reason you want to ride, remember the standing-passenger rule: when the bus carries more people than its 15 seats, Tokyo says it switches to manual operation.
6. The shuttle solves a real access problem for one of Tokyo’s newest big parks
Umi no Mori Park fully opened in March 2025 on reclaimed land in Tokyo Bay. Tokyo describes a park of roughly 60 hectares, with broad lawns, forest areas, playground and barbecue facilities, and elevated views across the bay-area skyline.
The park is deliberately spacious — but that also means it sits away from the dense rail network that makes much of Tokyo easy to visit. A direct shuttle from Shin-Kiba therefore does more than showcase autonomous-driving technology; it gives the park a straightforward public-transport link.
For residents, that makes a casual weekend visit more practical without a car. For travellers, it creates an unusual combination: a large new waterfront park plus a free Level 2 autonomous shuttle ride as part of the journey.
The timing is useful too. The autonomous service resumes one day after this story was published, so there is no long lead time or vague future rollout to remember. From 19 September, the practical decision is simply whether the timetable fits your day.
- Tokyo Metropolitan Government Bureau of Port and Harbor — autonomous Umi no Mori shuttle resumption, 17 Sep 2026
- Umi no Mori Park autonomous-bus project — service notices and project information
- Tokyo Updates — Umi no Mori Park background and opening
Shuttle operations can change for weather, maintenance, traffic or safety reasons. Check the project’s live service information before a time-critical trip.