Daikoku PA is one of only five parking areas on the entire Metropolitan Expressway network that the operator names as subject to closure because of reckless driving. That single fact explains most of what visitors find confusing about the place. Here is what the official rules actually say, in English, and what they mean if you're planning to go.
The short version: Daikoku PA can close at short notice, and there are three unrelated reasons it might. No website — including this one — can promise it will be open when you arrive.
These are genuinely separate mechanisms with different triggers, different warning times and different effects on what's available inside. Most English-language write-ups treat "Daikoku is closed sometimes" as one thing. It isn't.
The Metropolitan Expressway Company states that it closes parking areas "in cooperation with the police, as the situation requires" in response to malicious reckless driving by rouletto-zoku and other nuisance behaviour, citing the safety of customers and noise for residents living along the route.
When heavy snow is forecast, Daikoku PA and Kawaguchi PA close, because both sites are used as operating bases for freeze prevention and snow-clearing work. This is the strictest of the three: you cannot enter at all, and staff ask anyone already inside to leave.
Routine works close parking areas on a published schedule. These are announced in advance and are the only closures you can reliably plan around.
The Metropolitan Expressway operates twenty parking areas. Its own FAQ names five as subject to closure for reckless driving and nuisance behaviour:
| Parking area | On closure list |
|---|---|
| Daikoku PA | Yes |
| Heiwajima PA (inbound) | Yes |
| Tatsumi No.1 PA | Yes |
| Hakozaki PA | Yes |
| Shibaura PA | Yes |
| The other 15 parking areas | Not named |
Being on a five-name list out of twenty is not an accident. It's the administrative consequence of Daikoku being the place everyone gathers — the same reason you want to go is the reason it periodically shuts.
Worth sitting with: the thing that makes Daikoku worth visiting and the thing that gets it closed are the same thing. If you understand that, the rest of the etiquette makes sense on its own.
The word covers quite different situations, and the difference matters if you're already on the expressway.
In January 2022, the operator announced a closure of Daikoku PA from 18:00 on Friday 28 January until 24:00 on Sunday 30 January. That announcement stated that during the closure the main building's restaurant and shop would suspend business and only the Lawson convenience store would operate, while toilets and other facilities inside the parking area would remain usable.
The snow closure is not like that. There, you cannot enter the site at all and no facilities — toilets included — are available.
So "Daikoku is closed" can mean anything from reduced catering to a hard barrier. Check which one before you assume you can still stop for a toilet.
This trips up more visitors than the closures do, so it's worth stating plainly.
The Metropolitan Expressway Company states that pedestrians, bicycles and mopeds cannot enter Daikoku PA, and that there is no taxi rank and no bus stop. The parking area sits inside an expressway interchange. The only legitimate way in is as an occupant of a vehicle travelling on the expressway.
There is no train station, no walking route, and no drop-off point. If a plan involves arriving on foot or being dropped by a taxi at the entrance, that plan does not work.
No source gives you certainty, because crackdown closures happen at short notice. But you can stack the odds.
The Metropolitan Expressway traffic information site publishes construction and regulation schedules, and @shutoko_traffic posts official updates. This is where announced closures appear first.
There's a community app called PA Monitor that collects GPS-verified open/closed reports from people actually standing in the parking area, with push notifications for Daikoku. It isn't ours and we have no relationship with it — we're mentioning it because it's the most practical same-night check available, and telling you about it is more useful than pretending it doesn't exist.
If you're travelling in winter and snow is in the forecast for Yokohama, assume Daikoku will be shut and plan something else. That closure isn't discretionary.
We've photographed Daikoku on 50 separate nights between April 2023 and August 2026, each one timestamped and GPS-tagged. That log tells you when the lot is active — 89% of our records fall between 17:00 and 23:59, peaking at 21:00.
What it does not contain is a systematic record of nights we arrived and found the place shut. That's a gap in our data and we're now recording it going forward. Until we have enough of those, we won't put a closure frequency number on this page, because we'd be guessing.
→ See the full 50-night visit log and methodology
Three separate reasons: police-coordinated crackdowns on reckless driving and nuisance behaviour, heavy snow forecasts (the site becomes a snow-clearing base), and scheduled construction.
It's one of only five of the network's twenty parking areas named as subject to crackdown closure, alongside Heiwajima (inbound), Tatsumi No.1, Hakozaki and Shibaura.
Yes. When heavy snow is forecast, Daikoku and Kawaguchi PA close and are used as bases for de-icing and snow removal. You can't enter at all, and no facilities including toilets are available.
No. Pedestrians, bicycles and mopeds cannot enter. There's no taxi rank and no bus stop. It's inside an expressway interchange, so you have to arrive by vehicle on the expressway.
The Metropolitan Expressway traffic site and its official account cover announced closures. For same-night status, the PA Monitor app collects reports from people on site. Neither can guarantee it stays open.
The main building's second floor was closed for renovation from 1 July to 1 November 2025. The ground-floor restaurant and shop, vending machines, car park, toilets and convenience store stayed open.
We check the status before we set out, and we know where the scene moves to when Daikoku is shut. Three hours, Shinjuku pickup at 19:30, from ¥15,000.
Check availability →The factual statements on this page about closure policy, pedestrian access and specific closure dates are drawn from public announcements by Metropolitan Expressway Company Limited (首都高速道路株式会社). We have translated, compiled and organised them; the underlying facts are theirs and are linked below so you can verify them directly. Any interpretation, and our own visit data, is ours.
· Metropolitan Expressway — Parking Area FAQ (closure policy; pedestrian access; list of parking areas subject to closure)
· Metropolitan Expressway — Daikoku PA and Kawaguchi PA close when heavy snow is forecast (2 December 2024)
· Metropolitan Expressway — Regarding the closure of Daikoku PA (revised) (28 January 2022)
· Metropolitan Expressway — Daikoku PA second-floor renovation (18 June 2025)
· Metropolitan Expressway — Traffic information
Last checked against the sources above on 26 August 2026. Official information can change; always confirm with the operator before travelling.
→ Daikoku PA Field Notes: 50 GPS-logged nights