From September 1, the speed limit on roughly 70 percent of Japan's roads drops from 60 to 30 km/h. I counted 1,461 comments expecting a revolt — 73 percent sided with the rule. But the fourth-loudest voice said: nobody told us.
"Nobody is going to obey this" — that is what I came to say. The page answered: make them obey it. But tell them first.
How the votes fell
Ranked by upvotes. Left of the slash is agree, right is disagree. This is where the resentment actually sits.
- 1 4368 ∕ 770 The background to the 30 km/h rule is the reality of cars passing right beside pedestrians on roads with no pavement and no guardrail. Even without a sign, slowing down in a residential street should be second nature — yet the speeders never stop coming, and there are homes that have been hit by cars again and again. Because "slow down when it's dangerous" can no longer be left to drivers' judgment, a blanket 30 km/h became unavoidable. Before crying "instant licence suspension," drivers should ask themselves why it came to this
- 2 3403 ∕ 460 Bicycles should get a 30 km/h limit too. Some ride faster than motorbikes — mostly illegally modified e-assist bicycles and unregistered mopeds. So that people with no sense of wrongdoing can be caught and punished simply, every class of vehicle should have a speed limit, no exceptions
- 3 1489 ∕ 450 I fully support the 30 km/h rule. But as a practical matter, if you drive today's 30 km/h roads exactly at the limit, you will very likely be tailgated. I almost never see a car make a complete stop at a stop sign either — except where the speed traps are. Lower the limit by all means, but crack down just as hard on the drivers who harass anyone actually obeying it
- 4 1031 ∕ 539 Changing rules with the times may be necessary, but changing them unilaterally and then ticketing people each time is wrong. For a major legal change, licence holders should be notified — post us a card, anything. People who don't read the news daily have no way of knowing, and are being turned into violators without knowing it. Publicise it properly first, then enforce it
- 5 748 ∕ 184 Driving today I entered a community road, remembered this reform, glanced at the speedometer — about 35 km/h, probably my usual speed. On roads this narrow you can't go fast anyway if you think about children darting out. With a 30 km/h limit there will be fewer cars pushing at my rear bumper, which frankly is a relief
I read all 1,461 top-level comments. The buttons: 19,920 votes of "I relate" against 7,353 of "hmm" — 73 percent agreement, with "I see" pressed 1,438 times. Compared with 87 percent on the driver-camera page and 93 percent on the illegal-parking page, the objections here are far thicker: 73 percent ties the lowest rate of the 27 pages I have counted, and 276 comments — 19 percent — drew more objections than support. Counting the content: explicit support for the rule fills 136 comments worth 4,731 votes, 24 percent of all agreement; the claim that it simply won't be obeyed fills 50 comments worth 284 votes, 1 percent. The largest single theme is enforcement, 337 comments worth 6,233 votes, 31 percent — inside it live the sneer that police will never actually enforce it, the suspicion that they will farm easy tickets on empty country lanes rather than dangerous streets, and one eyewitness rebuttal: since a mobile speed camera started visiting a local 30 km/h road, nearly every car now keeps to the limit (263 votes, 241 against). Complaints about poor publicity fill 69 comments worth 1,617 votes, 8 percent, led by "not even a postcard" at 1,031 votes, fourth overall. Redirection at bicycles and mopeds — regulate them too — fills 60 comments worth 4,464 votes, 22 percent, led by the page's second-place comment at 3,403. Worries about logistics and the economy: 20 comments, 297 votes, 1 percent. Complaints that the definition is too crude (does an empty country lane really need 30 km/h?): 70 comments, 1,007 votes, 5 percent. Comparisons with other countries: 53 comments, 173 votes, 1 percent. The phrase "riding the flow" itself appears in just 2 comments worth 20 votes — but the same reality, testified from the law-abiding side as "keep the limit and you get tailgated," took third place with 1,489 votes. The top ten comments hold 65 percent of all agreement.
First, what is about to happen.
From September 1, the default legal speed on Japan's "community roads" — defined as any road with no centre line and no median — drops from 60 km/h to 30 km/h. Roughly 70 percent of the country's national, prefectural and municipal roads fit that definition. Until now, a road with no posted speed sign defaulted to 60; from next Monday the default on all those unmarked, narrow streets is 30. On most of Japan's road network, the ceiling is cut in half overnight.
Exceed it and the usual scale of fines and licence points applies. Go more than 30 km/h over and your licence can be suspended on the spot. A TV crew measured traffic on an ordinary residential street in Tokyo's Edogawa ward: cars passed at 35, 37, 40 km/h — legal today, a violation next month. The residents interviewed are delighted; one man's house has been hit by cars ten times.
I chose this article because it made me angry. Nobody is going to obey this. Japan makes rules and then does nothing. Every car has a speedometer, and yet traffic flows on an unwritten folk tolerance — the widely believed rule of thumb that you won't be stopped until you're some 15 km/h over the limit — and hardly anyone is ever caught. This country even has a phrase for it: nagare ni noru, "riding the flow" — an unspoken agreement that we shall all break the rule together, and that the flow itself, not the sign, sets the real speed. Delivery trucks ride the flow. So do taxis, daily. In a country like that, halve the number on paper and what, exactly, changes?
Two pieces of context before the numbers, because a foreign driver needs both. First, the 15 km/h figure I used above is not law — you will find it in no statute. It is folklore, passed between drivers, about where enforcement in practice begins; its very existence tells you that the posted number and the enforced number have long been understood to be two different things. Second, Japan is not importing a foreign idea here. European cities run 30 km/h zones too — but as the commenters themselves will point out below, they do it with zoning, street by street. Japan has chosen a single national default keyed to one physical feature: the absence of a painted line. It is the cheapest possible way to regulate 870,000 kilometres of road at once, and both its elegance and its crudeness come from that.
About 12 hours after publication, I read all 1,461 top-level comments and counted the buttons.
A page that was, for once, genuinely split
The count: 19,920 votes of "I relate" against 7,353 of "hmm" — 73 percent agreement. A clear majority, yes. But last week's illegal-parking page ran at 93 percent and the driver-camera page at 87. 73 percent ties the lowest agreement rate of the 27 pages I have counted — even the page's top comment carries 770 objections. This reform genuinely divided a comment section that usually speaks in one voice.
And the majority of that divided page was not on my side.
The page took the rule's side
Let me record this honestly. The comments saying what I said — nobody will obey it, it isn't realistic — number 50 out of 1,461, carrying 284 votes: 1 percent of the page's agreement. Explicit support for the rule fills 136 comments worth 4,731 votes — 24 percent. And the top of the page is a comment that scolds people like me to our faces.
The background to this 30 km/h rule is the reality that on roads with no pavement and no guardrail, cars pass right beside pedestrians and cyclists. [...] In the end, some drivers' morals and hazard sense have collapsed so far that 'slow down when it's dangerous' can no longer be left to the driver's judgment — so a blanket 30 km/h became unavoidable. Before making noise about 'instant licence suspension,' drivers should think about why it ever came to this.
生活道路を30キロにする背景には、歩道やガードレールもない道を、歩行者や自転車のすぐ横で車が走っている現実がある。［…］結局、「危険なら速度を落とす」という運転者の判断だけには任せられないほど、一部のドライバーのモラルや危険予測が崩れているから、一律30キロにせざるを得なかったのでは。「一発免停」と騒ぐ前に、なぜここまで規制されることになったのか、ドライバー側も考えるべきだと思う。4,368 for, 770 against. "We could not be trusted, so they had to bind us" — note who is saying this. The strongest defence of the regulation on this page came not from the government, but from the comment section itself. The state, as far as anyone here can tell, has barely explained anything — which brings us to the one argument of mine that won.
But "nobody told us" won by a landslide
One of my complaints the page endorsed with big numbers: change the rules overnight and of course there will be confusion.
[...] When there is a major legal change, there should be a duty to notify licence holders — mail us a postcard, something. For people who don't check the news every day, there is simply no way to know, and it feels like being turned into a violator without ever knowing it. I cannot accept that. Publicise it thoroughly first, then enforce it.
［…］免許を持っている人に対して、重大な法改正やルールの変更があるなら、ハガキを郵送するなど何らかの告知義務を果たしてほしいです。
ネットニュースや記事をわざわざ毎日チェックしていない人からすれば「知りようがない」状態で、知らず知らずのうちに違反にさせられているようで納得がいきません。しっかり周知を徹底してから取り締まってほしいです。1,031 for, 539 against — fourth place on the page. Here is the detail a foreign reader may find hardest to believe: in Japan, holding a driving licence gets you no notification whatsoever when traffic law changes. No letter, no email, nothing. The ceiling on 70 percent of the country's roads is about to halve, and anyone who doesn't follow the news will meet September 1 in a state the commenter calls "no way of knowing." Another comment put it sharply: during COVID the government managed to broadcast "wear a mask" from every surface of public life — why can't "30 km/h now" get the same treatment? (95 for, 17 against.) Complaints about publicity fill 69 comments worth 1,617 votes. But note the 539 objections on that fourth-place comment: a thick minority answers, ignorance is no excuse — you hold the licence, you keep up. Even the complaint about notice was contested. Everything on this page was contested.
"Obey the limit and you get tailgated"
My phrase — "riding the flow," the unspoken pact to break the rule together — appeared verbatim in exactly 2 comments worth 20 votes. But the same reality, witnessed from the other side of it, took third place on the page.
I fully support the 30 km/h limit. But as a practical matter, if you drive today's 30 km/h roads at exactly the legal speed, there is a high chance the car behind will tailgate you. [...] I almost never see a car make the complete stop the sign requires — grudgingly, only where the speed traps are. Lowering the limit is wonderful, but at the same time, please crack down hard on the vicious drivers who harass the cars that actually obey it.
今回の生活道路30キロ制限には大賛成です。ただ現実問題として、今の30キロ制限の道路をきっちり法定速度で走っていると、かなりの確率で後続車から煽られます。
［…］標識通りの完全な一時停止をしている車をほとんど見かけません（ネズミ捕りをしている場所だけは渋々止まる程度です）。
制限速度を下げること自体は素晴らしいですが、同時に「法定速度を守って安全運転している車を煽る悪質なドライバー」に対する警察の厳しい取り締まりも徹底してほしいです。1,489 for, 450 against. Read what this is: obey the speed limit in Japan and you will be punished for it — by the traffic behind you. Full stops happen only in front of speed traps. "The flow" is the rule-breakers' word for it; this commenter is describing the identical arrangement from underneath, as the driver the flow crushes. Halve the number on paper, and unless the direction of that pressure changes, the car doing 30 km/h next Monday is the one that gets tailgated. The page understands this perfectly — which is why its answer is not "the rule is futile" but "then police the flow."
"There is a speedometer in every car, and nobody gets caught"
My other complaint — Japan writes rules and then does nothing — was lying around the page in the form of a true story.
The road in front of my house is a community road. It's straight with good sightlines, and there's a downhill just beyond, so cars and motorbikes come through carrying real speed off the slope. I asked the local police station to come and observe. Their answer: 'All of the vehicles were doing under 60 km/h, so no violation has occurred...'
自宅前が生活道路です。
直線で見通しが良く、しかも少し先が坂道になっており、坂道を下って来た勢いで、かなりのスピードを出す車やバイクが多々あり、地元の警察署に相談し一度見て貰ったのですが、「何れも60km以下での走行でしたので違反になりません…」との事。419 for, 139 against. Sit with this one for a second, because it is the whole reform in one anecdote. A resident on a school route asked the police to do something about the speeding, and the police came, watched, and correctly reported that no law was being broken — because until September 1, 59 km/h past a child's front door on an unmarked lane is legal. This is the exact hole the reform closes, and it reframes my complaint: some of what I called lukewarm policing was police with no law to apply. As for what happens after — enforcement is the page's biggest theme, 337 comments worth 6,233 votes, 31 percent, and it contains all three futures at once: the sneer that police will never bother; the suspicion that they will farm tickets on empty rural lanes where speed is harmless instead of the streets where children walk (194 votes and others); and one eyewitness account that cuts the other way — since a mobile speed camera began visiting a local 30 km/h road, nearly every car now keeps to the limit; keep it up until it sticks the way seatbelts did (263 for, 241 against — even optimism was contested here). Where getting caught is a real possibility, Japanese drivers comply. The problem has always been how few such places exist.
The page then pointed at the bicycles
Second place on the page (3,403 for, 460 against) is not about cars at all: "give bicycles a 30 km/h limit too" — the illegally modified e-bikes and unregistered mopeds that outrun motorcycles. Redirection at two-wheelers fills 60 comments worth 4,464 votes — 22 percent of the page's agreement, twenty-two times the votes of "nobody will obey this." There is a real grievance underneath the reflex — the cyclists and moped riders being pointed at genuinely are unregulated by comparison, and this page's own commenters have watched them weave past at motorway speeds. But watch the arithmetic of attention. Keep this reflex in your model of Japan's comment sections: offered a new regulation, the page agrees — and then immediately asks that it be pointed at somebody else. A month ago, the driver-camera page approved in-car cameras at 87 percent and then demanded, 793 comments strong, that the machine go after drunk drivers next.
My verdict
I came to say: nobody will obey this, and in Japan the rational move is to do whatever you like. The page's answer was blunter than I expected. "It won't be obeyed" got 1 percent. The majority said: make it obeyed — but tell people first.
Still, I did not lose everything. "Obey and get tailgated" took third place; "not even a postcard" took fourth. The gap between a rule on paper and a rule on the road — the thing I was actually angry about — was affirmed with real votes, by drivers describing it from inside. And hold one more number next to this page: a month ago, when the question was whether a machine should cap your speed, comments asking for speed limiters collected just 2 percent of that page's agreement. A country that refuses to let a device touch the accelerator is about to halve the number on the sign instead. It complies wherever it might actually get caught; the whole content of this reform is how many such places September brings.
One word for visitors. From September 1, the ceiling on Japan's narrow streets is 30 km/h. However fast the traffic around your rental car is moving, that speed is not the limit — it is a violation with a friendly local name, "the flow." Trust the speedometer, not the neighbours.
Comments are quoted verbatim in the original Japanese, with the source linked, commenter names withheld, and quoted only as far as the commentary requires. Translations are mine. Source articles may expire (retrieval dates noted). The substance of this piece is the author's commentary.