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I live next to a school, so there's a low speed limit (30 km/h). Still, people drive like race drivers and the city hasn't ever responded to the residents' hope
by mavamaarten 2y ago
I live next to a school, so there's a low speed limit (30 km/h). Still, people drive like race drivers and the city hasn't ever responded to the residents' hopes of introducing a speed camera.
I wanted to have some data on how many people speed, the max speed recorded, that sort of thing. Things the city should be doing after many complaints of dangerous driving and people being almost killed on zebra crossings.
I have a doorbell camera, and by analysing the footage using OpenCV and some code, I can track how fast people drive if you see how fast they move between two known points.
Average speed: 46 km/h :(
- m3sta 2y agoI'm interested in this. A modern version of community watch.
- maltris 2y agoMan, please share a tutorial
- someothherguyy 2y agoThere are plenty of tutorials on how to derive speed of an object using opencv. You could ask an LLM to write it for you.
- digibeet 2y agoWhat about placing a fake speed camera? It might just get the job done
- rambambram 2y agoWhat about just faking speed limit signs? If it's in The Netherlands, everybody should respect traffic signs, whether they are fake or not.
- Cthulhu_ 2y agoThere will be speed limit signs, but they're easily ignored. Maybe one of these plastic "watch out for our kids" things that people place on the street themselves? https://verkeersmaatje.nl/ https://verkeersmaatje.nl/
- Apanatshka 2y agoIs that legal in your country? In mine (Netherlands) there are way too many people with doorbell camera aimed right at the street even though it's illegal to record a public space like that. Most folks are ignorant about it though, or think that surely the internet-connected gadget sold by some anonymous corporation won't be abused....
- onethought 2y agoFor private use you can film in public places in the Netherlands no?
- HenryBemis 2y agoIt is the "systemic/constant/permanent" recording, record-keeping. etc. a.k.a. "processing" (GDPR "processing" means "if it exists and you touch it, your are processing it"). Back in 2005 I remember working with some physical sec company that were setting up cameras in a factory, and they wanted the cameras to 'not record traffic, be activated on if THIS part of the screen has motion')(sidewalk vs sidewalk-right-on-our-doorbell vs road). Also, sudden changes in lighting would trigger it :) Then you need to have retention period (good luck). Most people use those door-cams are violating GDPR. UNLESS when people complain and take you to court (very very very rare), you can prove that "I auto-delete records after 24h when there is no incident", "I have proximity scanner so it is only 0m-2m from my front door", etc.) (violating GDPR because "hey you pervert why do you record my kids EVERY DAY going in and out") Privacy and Data protection is very very very difficult with GDPR (and thank you Facebook for messing up back in 2015ish!!!) You can set up your cam but have the "AI" automatically pixelating all license-plates, and the video recording (if any) should be post-pixelating, and not the original feed. How about you put something with a speed-measuring-sensor (that is NOT a camera), so you only get 'anonymised' data, i.e. "20 moving items", and their speeds. But you will not be able to tell if the 300km/h was done by a bicycle or a Hayabusa ;)
- formerly_proven 2y agoVideo surveillance limited to your own private property is not actually subject to GDPR. See GDPR article 2 para 2 lit c. It's not my asswipe opinion, either, see this whitepaper from a state privacy commissioner: https://www.datenschutz.sachsen.de/download/Hinweisblatt_Videoueberwachung_Stand_012023.pdf https://www.datenschutz.sachsen.de/download/Hinweisblatt_Vid...
- ariejan 2y agoNot sure where you are, but 30kmh sounds Dutch. Filming the public road from your private residence is illegal. In practice, no one cares. Cops will even ask you nicely for footage if something went down in your street. Anyway, best of luck with your project.
- t0mas88 2y agoIt's a complex discussion in the Netherlands in which the data protection agency (AP) has a very strict view (they claim it's not allowed) while for example the associated press sees it very different. There is a key difference between recording vs publishing. There are more restrictions on publishing and an objective assessment needs to be made between the interests of the person in the footage and the general public or publisher. I would argue that recording the road to collect speed data, not keeping the recording longer than needed and not for example recording license plates, would pass in the Netherlands. Since you're making an assessment between different interests and the is limited privacy impact. Of course assuming this is happening on a public road and not someone's property. Publishing the recordings instead of just the average speed data would be a very different story, especially if the cars or drivers can be identified.
- elzbardico 2y agoI'd think that as long as you blur faces and license tags, would be there anything for someone to complain?
- 01jonny01 2y agoI'd rather put up with the speeding than aasking for the government to intervene.
- rollinDyno 2y agoGovernment is already intervening, you think people are going at only 46 kmh because of goodwill?
- 4ndrewl 2y agoOoh how edgy.
- onethought 2y agoSaid someone living in a comfortable country with a stable government. You can’t seriously believe this right?
- 01jonny01 2y agoThere is optimum level of state intervention. IMO monitoring people with cameras for speeding is a step too far. I bet you are the same type of person who values software privacy haha
- FinnKuhn 2y agoThen why even have speed limits if you don't want to enforce them?
- richrichardsson 2y agoYou sound like someone who doesn't have young children who cross a road where the road users should be respecting the speed limit set deliberately low because it's right in front of an elementary school, but instead a significant proportion of them are Michael Schumacher wannabes who need to drive everywhere at 60km/h.
- JTyQZSnP3cQGa8B 2y ago
- fiftyacorn 2y agoi think part of the problem is 30mph/48kmph doesnt feel fast - and to get people to drive slower manufacturers need to design cars so 20mph/32kmph feels faster
- clan 2y agoOr consider the width of the road...
- globular-toast 2y agoThere is another way: make the road feel fast. Thankfully it doesn't need to be via bad road surfaces or horrible things like speed bumps that only encourage boy racers and reward large vehicles, making the road narrower with high kerbs or other physical obstacles force drivers to drive slowly and pay attention, otherwise they'll physically damage their vehicle. In a way it evens the playing field, currently cars can kill you, but they are untouchable, there are no consequences for speeding or being distracted. The main downside I can think of is the route becomes difficult for emergency vehicles to use, but with the saved space there could be a dedicated lane for public vehicles.
- mavamaarten 2y agoThey did try this approach. There's big concrete flower boxes in many places to create some artificial hindrances. It hinders your vision, causes people to swerve, it's annoying to give way. And worst of all: it slows people down for 2 seconds after which they just floor it. Honestly it's already pretty narrow and crowded here. I'm a regular driver here (duh) and it honestly feels dumb to drive faster than 30 because a cyclist can pop out of every corner. It's crazy to me that people want to, and do drive faster than that. But here we are. People suck.
- Cthulhu_ 2y agoIronically, the lower you are to the ground, the faster it feels - everyone should drive a sports car! (conversely, I drive a motorcycle sometimes which puts my head at or just over roof height of most cars, it makes 80 km/h not feel as fast. Mind you, the added road overview also helps) Anyway. Narrow / winding roads and speed bumps will definitely make you want to drive slower. We have 'cars are guests' roads inside cities too, which are roads designed and coloured like bike paths (= red asphalt). But the opposite is also true; I got a speeding ticket once, the road was a 4 lane, separated directions asphalt ring road... but the speed limit was 50 km/h.
- parimm 2y agoCan you post this code if possible please?
- gamedever 2y agoThe guy at Not Just Bikes will tell you that enforcement will never work nor happen and that the only way to get people to slow down is to design the road so it doesn't feel safe to drive fast. The road next to my house has a speed limit of 20mph but most cars go 45mph because it's a straight road 4 lanes but space for 6. No bumps, no curves, wide. Effectively it feels like you should be driving fast. If I go the speed limit in the center lane because I'm going to turn left people will get angry and speed around at 60mph pissed off
- elzbardico 2y agoJust out of curiousity, do you signal that you are going to turn left when you slow down compared to the average of the other drivers?
- jagged-chisel 2y agoI don’t know about this person’s experience, but there are an overwhelming number of drivers here that don’t notice signals. I can be in the right lane (two lanes in both directions), signal a right turn, slow to turn and they’ll still ride right up on me and look pissed rather than go around.
- elzbardico 2y agoIt gets worse, some drivers seem to adopt an adversarial attitude towards the usage of turn signals and will deliberately accelerate or do something else to make things more difficult to you.
- jagged-chisel 2y agoIf they’re behind me, they’re risking their own liability. Otherwise (changing lanes, left turn across traffic), I think it’s more “not ahead of ME!” than about the signal itself.
- 2y ago
- someothherguyy 2y agoHas anyone been hit by a car there ever? I think people used to use science to set speed limits.
- Cthulhu_ 2y agoThey did, 30 km/h is a lot safer than higher speeds. You seem to imply someone has to be hit by a car before enforcing the speed limit, am I correct?
- someothherguyy 2y agoNo, just implying that when someone is hit that the posted limit has more scrutiny.
- andrewstuart 2y agoPublish to Twitter along with number plates and tag the local council.
- globular-toast 2y agoI'm starting to think about a similar thing for noise. The noise of motor vehicles seems to be out of control and I am sure it is causing misery for the majority of the population who have to live near roads. I reckon a single loud motorcycle could disturb tens of thousands of people, potentially waking or startling them, raising blood pressure etc. in a single 10 minute trip. Unfortunately I think awareness of this problem is even worse than speed.
- jay-barronville 2y ago> I reckon a single loud motorcycle could disturb tens of thousands of people, potentially waking or startling them, raising blood pressure etc. in a single 10 minute trip. What absolutely grinds my gears is when a loud motorcycle or sports car drives through my residential neighborhood right after patiently rocking my baby to sleep. Interestingly, as a motorcycle and sports car owner myself, I never thought about that aspect for even a second until I became a dad—I drive much more gently nowadays (especially in residential neighborhoods)!
- globular-toast 2y ago> Interestingly, as a motorcycle and sports car owner myself, I never thought about that aspect for even a second Right, because the car's cabin and motorcycle helmet protect the driver/rider from it. The noise they create are specifically designed to be heard by everyone but the operator. It's like me sitting in my back garden wearing earplugs, while blasting music out the front into the street.
- silisili 2y agoI used to live in a neighborhood about a quarter mile from a highway, nearly perfectly flat land, speed limit I believe was 45 or 55. Most days the road noise itself was no big deal, if the wind blew it was gone, if you listened for it you could hear a whooshing/droning in the distance. But all it took was one loud motorcycle or old car/truck to really ruin your peace for a solid 3 to 5 minutes, being able to hear it on approach, and it went by, and exit. And it wasn't that rare to get them back to back, seeing as it's a 4 lane highway with a decent flow of traffic. It wasn't really until then I realized how a single vehicle could cause so much annoyance for so many people.
- kmmndr 2y agoThis is very interesting. I had the same need a few weeks ago, which resulted in a tiny Golang/OpenCV project (https://github.com/kmmndr/motion-speed https://github.com/kmmndr/motion-speed). In my use case, we even had champions beating 60 km/h, three times allowed speed
- brikym 2y agoIt's always interesting when you find out others are doing some obscure idea. Last year I was scraping supermarket data from a small country and I ended up setting up a discord with a half dozen of us sharing tips.
- kylecazar 2y agoOn my street they installed one of those 'current speed' radar displays to let people know they are speeding. I've never thought they worked really, but this is a new one. It has very prominent red and blue flashing lights that trigger if you are 5+ over. I've seen countless people slow down immediately, it's that jarring/terrifying
- boogieknite 2y agothe side effect is bikers like me will pedal as hard as possible in hopes we can get that light to flash
- vincnetas 2y agoI assume you are talking about cyclists. So in this case i guess it's not a biggie as they are moving the mass of no more than 20kg compared to 2000kg when driving a car. (from safety perspective)
- bdavisx 2y agoThat's because a lot of those people think it's a "speeding ticket" camera flashing at them.
- 93po 2y agoyou could install some vigilante speed bumps maybe
- BurningFrog 2y agoThis reminds me of the civic minded heroes from Oakland, the Pothole Vigilantes: https://www.youtube.com/watch?v=ZmCNMQ7TOgY&t=9s&ab_channel=VICENews https://www.youtube.com/watch?v=ZmCNMQ7TOgY&t=9s&ab_channel=...
- tenzo 2y agoReminded me of this: https://www.youtube.com/watch?v=rReyh1wnl8I https://www.youtube.com/watch?v=rReyh1wnl8I for the Malcolm in the middle fans!
- adamredwoods 2y agoOur street is fairly bad, and I've brought it up to the city several times, so one of our neighbors went to the city and managed to get a vote for some speed "calmers" put in. It passed! A small example of government working for the people.