...they have a plan.
"Ok hear me out... Eight digits."
🤯🤯🤯
this post was submitted on 22 Apr 2025
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Imagine if they just stopped registering new cars and instead worked to bring back mass public transit to reduce the number of vehicles on the road.
I guess busses and trains are just too woke for CA.
Car companies like it that way just fine and lobby heavily to keep it that way
I guess busses and trains are just too woke for CA.
it has some of the best transit available in the country, and the tightest environmental regs.
which tells you the sad state of our country.
They're switching from 0AAA000 to 000AAA0. When that arrangement runs out they've still got A000AAA, AAA000A, AAA0AAA, and 000A000. Then they can start using letters and digits in pairs or fours. By the time they run out of everything cars won't have license plates, or won't exist, or neither will we.
Okay wait let me do the math here, 10x26x26x26x10x10x10 = 175,760,000. The article says that commercial trucks get a different pattern of plate. So you're telling me there's 175 million passenger cars on the road in California? For scale, there's approximately 350 million American citizens. For every two Americans, there's a car registered in California? Not counting vanity plates or commercial vehicles.
What the intern fuck is going on there bud?
They don't want to reuse the numbers, so it's cars that are on the road now or ever have been.
I think I can shed some light on this. In California, you pretty much have to have a car. There are roughly 40 million residents in California. When you get a car, a license plate is issued. When you register a car, a license plate is issued. When you order a vanity plate, a license plate is issued. The same car can be registered to several license plates before any of them return to circulation. If a plate stays inactive for a number of years, then it returns to circulation to be reissued. I'm not sure about California, but some states it's 10 years, others have 20 years and I'm sure still others have other lengths of time for these numbers to expire. The reason for this is that you can let your registration lapse and still re-register your car once you can afford to do so. Or a car can sit in some legal dispute for a long period of time. Various reasons a car's registration may lapse but still want to be registered again some day. So let's say you buy a used car in California and then register new vanity plates on it. Let's also say you're the 3rd owner. It's not unreasonable that that particular car have 4 different license plate numbers associated with it that have not been reregistered or are currently in use. Also, many people own more than one car.
Except for vanity plates, used cars keep the same plates in California.
Not always. People often wish to transfer plates to their new car so they don't have to memorize a new one.
Add a 0 in front of every plate and it is fixed
I wonder what the practical reason is for not just allowing full alphanumeric number plates. Each digit would then have 32 possibilities (I, O, Z, and S should be avoided to prevent confusion with 1, 0, 2, and 5). This gives 34.36 billion possible number plates which seems sufficient for at least the next couple years.
Harder to remember than if they group letters and numbers.
Right now remember 1 digit that’s usually 8 or 9, then 3 letters and 3 numbers So 8WTF420 is easier to remember than WT842F0.
I guess that's true but number plates are typically read by cameras anyway. They are primarily used by speed/red light cameras, toll collection systems, and law enforcement.
If you assign random numbers to cars, it's pretty likely that the last four or five digits plus the make and model of the car will uniquely identify a vehicle or at least narrow it down to just a few possibilities. If the assignment software is smart it could probably even guarantee this uniqueness.
Electronic plate readers are an illegitimate anti-privacy technology and should be banned imo. License plates are already too hard to remember, I have a hard time remembering my own license plate number let alone one I had a two second glance at.
Say what you will about electronic plate readers but they do make speed and red light enforcement and toll collection much easier. And be honest, most people only dislike them because they make it harder to get away with bad driving habits that people previously took for granted that they could get away with.
Well I dislike them mainly because they further enable scalable mass surveillance. There should be more barriers to having records of where everyone is. As for automated enforcement, the way it works is often a blatant scam. I once had a commute where I passed by an intersection that ticketed people turning left, the amount of time it allowed was noticeably shorter than normal, and you could see the flash indicating they were ticketing someone basically every time the light changed, for multiple cars, because it activated if you were in the intersection at all after the light turned red. There was always a long line to turn left at that intersection. I mostly avoided getting ticketed but I did get one once, it was through a private company and I just ignored it and nothing happened. I really think most of those get set up because of corrupt relationships between people in government and the people running those companies that handle the tickets.
That issue is not really the problem of the camera though. That's like saying you don't like running water because people have drowned in water before. If the cameras are being misused then that is a political issue.
In my city, the police department operates the cameras and they will send at least one warning before you get a fine unless the violation is very egregious (e.g. double the speed limit in a school zone)
Running water is a technology that tends to solve bigger problems than it causes. You can always count on politics to break sometimes, but when it happens with running water, even if people are getting sick because of lead pipes and sewage is backing up into peoples homes because of organizational dysfunction (happened to me, the city just failed to connect the pipes from my apartment to the sewer and pretended they had), it's still better than the public health catastrophe that is an absence of running water.
On the other hand, for the entire class of technology where the benefit is more automation of law enforcement, I'd argue it's completely the other way around; huge inherent political risk, minimal potential improvement.
Can't say I agree. This is anecdotal but the council installed some camera-like devices on one of the main roads in my city and people got scared of them and slowed down as a result. I don't think the cameras are actually turned on and issuing fines as I don't know any people who have gotten a fine from them, but their presence scares people into safer driving.
Automated law enforcement in fields where guilt can be obviously and objectively determined (resist the urge to make a fallacious slippery slope argument) is, on average, a good thing. People's tendency to bad behaviour is strictly because they think they won't get caught. Telling people there's a $500 fine for speeding means nothing because they know the chance of getting caught is in the neighbourhood of 1 in 10,000. Most people speed every day on every road they drive on but they get maybe 1 ticket every other year. But if they know that speeding on one particular road will result in a 90% chance of getting a $50 fine, they're not going to speed on that road. That's why the cameras are usually painted bright orange or white—to get people to see them and think "oh shit, I don't want a ticket; I'd better slow down".
As long as we have democratic control over our own local governments and strong privacy laws regarding how that data can be used, I do not view misuse of automated number plate recognition systems as a serious threat. In fact, I think it's probably a net bonus. There's a show called Police Interceptors which follows British police and it's absolutely shocking how many stolen cars they recover because someone drove it past an automated number plate recognition camera and it got flagged.
In hit and run accidents, human memory is what needs to be supported by the technology.
Therefore license plates should be designed for maximum mnemonic potential, not CPU efficiency.
I think you're grossly exaggerating the difficult of memorising alphanumeric number plates:
GL7KKUQTHUP70123WD2C1WWQG21AP92BTQY
These were randomly generated and really not that bad to remember. Especially if the system is designed so that you only need to remember the first/last four or five digits. Compare to these (found at random on the Internet) number plates under a mix of the two current schemes:
752EPS47WMT5139AYE877648GDG6
Edit: What I really mean to say here, is that random number plates makes memorising the entire number plate unnecessary. You can get away with just remembering the first four digits and the car's make, model, and colour. As long as fewer than 1 million (32^4) cars of the same model and colour are registered, this system guarantees that a car is uniquely identified by its colour, model, and first four of its number plate (i.e. "I was hit by a red Tesla Model X whose plate starts with EL0N")
If you don’t have time to get a photo you probably don’t have time to get the make. I’ve seen plenty of hit and run news reports where the witness just says “dark colored SUV”.
License plates need to be easy for humans to read and remember.
Random number plates are still likely to reduce the number of possibilities to just a few, likely visually distinct, cars.
Or put the letters and numerals in set spots, ex. ABC-123, next move onto 123-ABC once you’re done with the first bazillion combinations , AB3-12C, etc.
That way you can tell your 1 isn’t an I because it’s not in the right spot.
But once you've got cars on the road in both the first and second combination (or first and third, or whatever) then you can't easily tell if it's 111-III or III-111 or II1-11I.
in australia we had alpha and numeric divided and then a few years ago we switched to just alphanumeric everywhere… the font used is made to be machine readable - an I and a 1 look very different; it’s a non-issue
Yeah, using a smart font is a good solution.
In my state of my country the plates are colour coded. So like for most of the 90s it was green, now they're blue or something? I dunno, if you knew what to look for you could figure out what generational combination its from.
This is also a clever idea!
This is literally what CA does. 1AAA111, they've simply exhausted the pattern - 9ZZZ999 will go out sometime this year, according to the article.
Washington state had that for a while. They changed around a decade ago or so, maybe a little less. Now it's just a seven character plate, ABC1234.
UK includes the year in it, so it shouldn't ever really run out. Ok I guess eventually it will loop but I expect most will be available for reuse by then.
One issue could be if more cars are registered than the digits would make available for that year but you would probably just design it in a way there is significantly more space than you are ever realistically going to need.
We actually did loop in Denmark a decade or so ago. It was quite easy to guess the production year of the car by just looking at the first two letters. It was a bit trippy seeing new cars with "AA 11 111” all of a sudden when we ran out of ZZ's.
That would be pretty nice. Our plates are expensive over here (US) so we just put a new tiny year sticker on each time and keep the plates for a long time.
I think you might be mis-understanding slightly? In the UK the date is on the plate as part of the number e.g. AB25 6CD would be on a car registered in 2025. We don't have anything on cars like a registration (tax disk went long ago) number plates are big and plastic here for some reason, someone smart could probably explain why it's good or bad.
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They could pull an Illinois and restrict the number of digits.
They could simply kill people instead of giving them tickets. Keep the driving population down. If everyone drives perfectly just kill at random.
Perfectly mildly interesting
I remember seeing BTF2 in '89 when it came out. 2015 seemed so far in the future. Now it's 10 years ago. 🧓
ha! Someone knows OIDs.
It's the licence plates from back to the future.
I’ve always thought it dumb that the nation’s most populous state only uses seven of the possible eight characters on a license plate. Most states only use seven, but a dash separating letters and numbers means there is actually room for eight characters and many states will allow you to use all eight for vanity plates.
The hyphen helps people remember partial plates, and you can look up a vehicle fairly easily with a partial plate, color, make, and/or model
T28-5U47 vs T285U47Y
Chances are you'll remember T28 or 5U47 more than T285U47Y.
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