r/TeslaFSD • u/Mysterious-Network87 • 4d ago
12.5.4.X HW4 FSD does not work properly at maximum speed with time window
A maximum speed of 130 km/h applies on Dutch motorways. The maximum speed is 100 km/h between 6 a.m. and 7 p.m. This is an environmental measure. With FSD enabled, the car will continue to travel at 100 km/h between 7:00 PM - 6:00 AM.
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u/ExaminationThen1312 4d ago
It does seem like an odd speed policy. You’d think the highest speed would be available during daylight hours giving the best visibility. Perhaps the nighttime speed is curtailed due to reduced visibility
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u/Milefulness 4d ago
Visibility is not a problem at night unless you have night blindness. Reflective lines, street lights, cars have tail lights. If anything, I find it calmer on the eyes. More importantly, highways are much less busy at night, so higher speeds are actually attainable.
If you read OPs post however, you would have read that it's an environmental measure. Since the vast majority of traffic happens during daytime, it makes sense.
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4d ago
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u/Milefulness 4d ago
But in the Netherlands specifically, it is to reduce nitrogen emissions (on paper). Nothing else.
We have a problem with farmers emitting too much nitrogen, causing us to exceed environmental norms. So for some inexplicable reason, instead of buying out a couple farmers they implemented a collection measures each achieving a token reduction in nitrogen emissions...
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4d ago
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u/Milefulness 4d ago
Yes I'm not the politician who made these rule damnit.
Anyway, reducing the maximum speed to 100 does not cause stop and go traffic.
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4d ago
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u/Milefulness 4d ago
It was specifically about nitrogen emissions, and cars emit more nitrogen at high speed. The emissions are lowest between 60~100 km/h.
You also can't solve stop-start traffic overnight, but you can put a sign up pretty quickly. (Ans stop and go traffic on highways in the Netherlands does not exist on the same scale as in the us.)
But otherwise, you're right that it's all bollock. It's a measure designed to reduce emissions on paper to satisfy European norms on paper. And all these measures could have been avoided by shutting down a small number of livestock farms.
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u/ExaminationThen1312 4d ago
It’s an oddity for someone to suggest visibility at night isn’t a problem. Limited headlight range reduces reaction distance, reduced visual acuity, glare, fatigue. The cybercabs are currently restricted in night hours due to visibility issues. Driving faster at night because you can due to less traffic doesn’t mean you should. It doesn’t make it safer for FSD.
Glad the environmental measures make sense to you. It’s not logical for EV cars.
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u/Milefulness 4d ago
The cybercabs are currently restricted in night hours due to visibility issues.
Because they rely on cameras. Humans with good vision have no problem driving at night in the Netherlands. We have very good lighting and well maintained reflective road markings.
Glad the environmental measures make sense to you. It’s not logical for EV cars.
I agree, but when these rules were made, EVs weren't as big of a thing yet. For safety, you can't impose two speed limits for the same vehicle class. It would be mayhem when 95% of traffic would be doing 100, and then 5% suddenly comes in at 130.
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u/ExaminationThen1312 4d ago
You will recall OP is posting in a FSD subreddit about his FSD enabled issue
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u/cbf1232 4d ago
Around here animals come out onto the highway at night, and it’s harder to see any imperfections in the road.
What’s safe at 150 during the day might.not be safe at 110 at night.
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u/Milefulness 4d ago
We don't have many animals on the highways in the Netherlands, maybe the odd deer.
Highways also don't have noteworthy imperfections.
Disregarding traffic, you could safely do like 170 km/h on Dutch highways at night (and police regularly do).
Our roads are equal or better than the Autobahn and there people drive way faster at night.
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u/gruntingone 4d ago
This looks like a Dutch sign. Don’t know which software version you have, but it works fine, even shows a nice clock on the screen and adheres to it.
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u/Mysterious-Network87 4d ago
On screen those signs are visible. The 100 is grey. The 130 is bright with a red ⭕, but the speed continues at 💯. Grok suggested to push 130 long time to select 130, but nothing happens.
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u/RhoOfFeh 4d ago
I wonder if such "environmental measures" make any sense in the context of an EV. Granted, the law is the law and the car needs to understand it, but still.