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But to what end? Ignoring the privacy aspect, the point should not be too ensure everyone goes the does limit or slower. The point should be that people are tra

But to what end? Ignoring the privacy aspect, the point should not be too ensure everyone goes the does limit or slower. The point should be that people are traveling at a reasonable and safe speed. Driving fast doesn't necessarily mean unsafe. You can be driving the speed limit and be going at an unsafe speed. So the speed cameras make it more likely that people will be under the speed limit. But are the roads safer?

ISL 6y ago
> You can be driving the speed limit and be going at an unsafe speed. If so (and there is no inclement weather), then the speed limit is too high.
- TheSpiceIsLife 6y ago
  Road and driving conditions can change. Snow; rain: darkness; traffic. Speed limits are intended to an upper bound, not a target.
speedgoose 6y ago
> Driving fast doesn't necessarily mean unsafe. In all studies I read or heard about, speed is a huge factor for increasing injuries and deaths. > You can be driving the speed limit and be going at an unsafe speed. Then you are driving too fast according to the law. At least in France or Norway. > So the speed cameras make it more likely that people will be under the speed limit. But are the roads safer? Yes. The numbers talk for themselves whenever a new speed camera is installed in a road.
- overscore 6y ago
  Do the numbers speak for themselves? In Ireland, at least, speed cameras are generally placed at compliance black spots, not accident black spots. Speed cameras on extremely safe motorways here have never been shown to reduce accidents, only to reduce speeding.
  - speedgoose 6y ago
    Sorry I don't feel like arguing or this topic anymore, excessive speed and safety.
  - lb1lf 6y ago
    -I heard on the radio a few weeks ago that deaths on accident-prone roads which had had average speed cameras fitted were down by half. This was in Norway, but I expect the same holds true for other jurisdictions.
magicalhippo 6y ago
> But are the roads safer? Absolutely yes. Speed contributes in two major ways when it comes to accidents, which this is all about: reaction time and energy. Going faster means you have less time to react and handle the situation. If you're going 100 km/h instead of 80 km/h, and something happens 100m in front of you, you have only 3.6 seconds instead of 4.5 seconds to react and deal with it. This scales with distance. If you're going at 100 km/h instead of 80 km/h, your car has 50% more kinetic energy. This translates fairly directly into increased breaking distance. So as speed increases you have less time to react and in addition you require more time to slow down.
- magicalhippo 6y ago
  Or to put it a bit more bluntly, based on this chart[1] of typical stopping distances versus speed, you can come to a stop in 53m if you're going 80km/h. If instead you're going 100km/h, your car will be still be doing over 60km/h after 53m... Obviously the exact numbers will vary based on car and conditions, but the point stands about just how much things change when you're speeding. [1]: https://assets.digital.cabinet-office.gov.uk/media/559afb11ed915d1595000017/the-highway-code-typical-stopping-distances.pdf https://assets.digital.cabinet-office.gov.uk/media/559afb11e...

ISL 6y ago

> You can be driving the speed limit and be going at an unsafe speed. If so (and there is no inclement weather), then the speed limit is too high.

TheSpiceIsLife 6y ago
Road and driving conditions can change. Snow; rain: darkness; traffic. Speed limits are intended to an upper bound, not a target.

speedgoose 6y ago

> Driving fast doesn't necessarily mean unsafe. In all studies I read or heard about, speed is a huge factor for increasing injuries and deaths. > You can be driving the speed limit and be going at an unsafe speed. Then you are driving too fast according to the law. At least in France or Norway. > So the speed cameras make it more likely that people will be under the speed limit. But are the roads safer? Yes. The numbers talk for themselves whenever a new speed camera is installed in a road.

overscore 6y ago
Do the numbers speak for themselves? In Ireland, at least, speed cameras are generally placed at compliance black spots, not accident black spots. Speed cameras on extremely safe motorways here have never been shown to reduce accidents, only to reduce speeding.
- speedgoose 6y ago
  Sorry I don't feel like arguing or this topic anymore, excessive speed and safety.
- lb1lf 6y ago
  -I heard on the radio a few weeks ago that deaths on accident-prone roads which had had average speed cameras fitted were down by half. This was in Norway, but I expect the same holds true for other jurisdictions.

magicalhippo 6y ago

> But are the roads safer? Absolutely yes. Speed contributes in two major ways when it comes to accidents, which this is all about: reaction time and energy. Going faster means you have less time to react and handle the situation. If you're going 100 km/h instead of 80 km/h, and something happens 100m in front of you, you have only 3.6 seconds instead of 4.5 seconds to react and deal with it. This scales with distance. If you're going at 100 km/h instead of 80 km/h, your car has 50% more kinetic energy. This translates fairly directly into increased breaking distance. So as speed increases you have less time to react and in addition you require more time to slow down.

magicalhippo 6y ago
Or to put it a bit more bluntly, based on this chart[1] of typical stopping distances versus speed, you can come to a stop in 53m if you're going 80km/h. If instead you're going 100km/h, your car will be still be doing over 60km/h after 53m... Obviously the exact numbers will vary based on car and conditions, but the point stands about just how much things change when you're speeding. [1]: https://assets.digital.cabinet-office.gov.uk/media/559afb11ed915d1595000017/the-highway-code-typical-stopping-distances.pdf https://assets.digital.cabinet-office.gov.uk/media/559afb11e...