Self-driving taxis set for commercial launch in Tokyo by 2027 — 5ch asks: “Who’s liable in a crash?”

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The story

Taxi-hailing app “GO,” Alphabet subsidiary Waymo, and Nihon Kotsu have agreed to a partnership to commercialize self-driving taxis in Tokyo. The three companies aim to launch Japan’s first fully driverless “Level 4” taxi service, with no driver on board, sometime in 2027. On 5ch, attention first focused on who would be liable if an accident occurred. Some posts explained that the operating company would pay damages first and then seek compensation from the manufacturer if a system defect were to blame, while others questioned why the rollout was starting in traffic-heavy Tokyo rather than a rural area.

Published 9/15 (Tue) 9:00 AM

Impress Watch

Taxi app “GO,” Alphabet subsidiary Waymo, and Nihon Kotsu have agreed to a strategic partnership to commercialize self-driving taxis in Tokyo. The three companies aim to launch Japan’s first fully driverless, Level 4 autonomous commercial taxi service in Tokyo sometime in 2027.

Source: news.yahoo.co.jp / Read the original article here

What people said

8AnonymousSep 15, 2026 11:28
If a passenger dies, or a pedestrian gets killed, who takes responsibility?
11AnonymousSep 15, 2026 11:28
Re: #8
Does someone even have to take responsibility in the first place?
21AnonymousSep 15, 2026 11:32
Re: #8
Well, it'd be the taxi company, based on fault ratio — no different from now, is it?
64AnonymousSep 15, 2026 11:44
Re: #8
Serious answer: it's the operating company (Nihon Kotsu, in this case).

If a driverless taxi kills a pedestrian, Nihon Kotsu pays damages first.

Then, if it turns out to be caused by a system flaw, the operator (Nihon Kotsu) apparently seeks compensation from the manufacturer (Waymo).

Unlike the US, Japan has mandatory auto liability insurance (jibaiseki), so a setup like this might actually work better here.
10AnonymousSep 15, 2026 11:28
Shouldn't they start in the countryside, where there aren't even taxis? Or an understaffed regional city would work too. Why start in Tokyo?
28AnonymousSep 15, 2026 11:34
Re: #10
The city center has a lot of people, but the roads are well-maintained. In rural areas, it's the quality of the (human) drivers that's the problem.
32AnonymousSep 15, 2026 11:35
Re: #10
Each vehicle costs a fortune, so you need a big city to offset that cost.
91AnonymousSep 15, 2026 11:47
Re: #10
Starting in urban areas is a mistake. Heavy traffic means accidents will happen — people will die.

That'll spread public rejection of self-driving cars. If enough people oppose them, they'll never catch on.

Limit approval to rural areas — that's where this should start.
17AnonymousSep 15, 2026 11:31
Re: #11
If someone you loved got killed, could you really just shrug it off as "bad luck, ha ha"?
29AnonymousSep 15, 2026 11:34
Re: #17
The insurance company will pay out, and if self-driving lowers the overall accident rate compared to elderly drivers, it's a net plus for society as a whole.

Would you be satisfied if your loved one died and the human driver responsible got executed for it?
40AnonymousSep 15, 2026 11:38
Re: #17
Japan could pull this off — just enshrine it as a "car god" or something (a nod to the Shinto custom of enshrining objects as deities).
54AnonymousSep 15, 2026 11:42
Re: #17
If the system was working properly and the situation simply exceeded what it could handle, then it's nobody's fault — force majeure. Victims get compensated through insurance.
37AnonymousSep 15, 2026 11:37
Why has Japan fallen this far behind?
49AnonymousSep 15, 2026 11:41
Re: #37
Because everyone kept dodging the issue with "Who's going to take responsibility if something happens?!"
105AnonymousSep 15, 2026 11:49
Re: #37
Bureaucrats: "But the regulations…"
Out-of-touch old guard: "Who's going to take responsibility when there's an accident?!"

And that's how we ended up lapped by the rest of the world lol
41AnonymousSep 15, 2026 11:38
Re: #29
Who's actually carrying the insurance here?
71AnonymousSep 15, 2026 11:45
Re: #41
The taxi company
84AnonymousSep 15, 2026 11:47
Re: #41
Probably the taxi company
96AnonymousSep 15, 2026 11:48
Re: #41
It'll probably end up being the taxi company, and if the accident rate turns out lower than with human drivers, the premiums the taxi company pays could even go down.
65AnonymousSep 15, 2026 11:45
Things self-driving will eliminate:

Speeding
Falling asleep at the wheel
Driving the wrong way down the road
Mixing up the gas and brake pedals
Tailgating/road rage
Elderly people having to surrender their licenses
85AnonymousSep 15, 2026 11:47
Re: #65
Seriously, nothing but upside here
168AnonymousSep 15, 2026 11:57
Re: #65
Drunk driving, driving without a license — those will fade away too
202AnonymousSep 15, 2026 12:02
Re: #65
It'd be a shame if elderly people no longer had to give up their licenses
104AnonymousSep 15, 2026 11:49
So when do we actually get flying cars, lol
126AnonymousSep 15, 2026 11:52
Re: #104
Realistically impossible, what with aviation law and all
216AnonymousSep 15, 2026 12:04
Re: #104
Drone taxis might actually spread faster than self-driving cars — they could stand in for ferries on remote islands without a bridge
111AnonymousSep 15, 2026 11:50
Huge if self-driving frees up all the manpower currently tied up in logistics and pickup/drop-off driving
131AnonymousSep 15, 2026 11:52
Re: #111
Once humanoid robots can handle loading and unloading too, logistics won't need a single human being at all
147AnonymousSep 15, 2026 11:54
Re: #131
Wonderful. A labor-short country like Japan should be first in line to adopt this
117AnonymousSep 15, 2026 11:50


Tokyo is full of streets like this the moment you step off the main roads… is this really going to work?
124AnonymousSep 15, 2026 11:51
Re: #117
Places like Suginami Ward are a no-go for this (wordplay on "ikan" — "no good")
223AnonymousSep 15, 2026 12:05
Re: #117
This is rough enough in a Fiat 500, let alone a driverless car
251AnonymousSep 15, 2026 12:07
Re: #117
Downtown/entertainment-district streets are the real problem — with people constantly walking around the car, once it stops it can't confirm it's safe to move again and just gets stuck
211AnonymousSep 15, 2026 12:03
Re: #194
The dark truth about China's driverless taxis — they were all remote-controlled.
237AnonymousSep 15, 2026 12:06
Re: #211
The driverless buses planned for Japan are apparently also lightly remote-monitored — though it sounds like one operator watches around ten vehicles at once, stepping in only when an alert comes in
260AnonymousSep 15, 2026 12:09
Re: #211
That's a cheat code only possible because Chinese cities have such robust 5G coverage

Background and key points of debate

Under Japan’s Road Traffic Act as revised in 2023, Level 4 driving with no driver on board is already legally possible under certain conditions, and this partnership looks set to operate within that framework. In the US, Waymo has already been running commercial driverless taxi service in cities like San Francisco and Phoenix, and Tokyo appears to be importing that know-how directly. Opinion in the thread split mainly over two points: who’s liable in an accident, and whether it makes sense to begin testing in traffic-heavy Tokyo. On liability, some replies laid out a scheme where operator Nihon Kotsu pays damages first and then seeks compensation from developer Waymo if a system defect turns out to be the cause, while others argued that starting in an urban area makes sense given the cost of the vehicles and road conditions. The original article doesn’t go into operational details like remote-monitoring setups, so how much of this will actually run driverless in practice remains to be seen as testing proceeds.

※This article is excerpted and summarized from the 5ch (Breaking News Plus) thread “[Transportation] Self-driving taxis in Tokyo to launch in 2027 — GO and Waymo.”

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