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3D crosswalk in Iceland helps slow down speeding motorists

icelandmag.visir.is

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Re: 3D crosswalk in Iceland helps slow down speeding motorists

#61

Post by jacobolus »

hydrogen18 wrote: post #54
jacobolus wrote: post #33

Earlier quoted context omitted.

Having bright blue headlamps makes it harder to see into the shadows even for the car’s driver, because it causes the eyes to be less dark-adapted. Older halogen lamps work better in practice. The newer LED lamps only sound better in marketing materials, and based on junk metrics created by the industry itself.

Yeah man, LEDs are just a scam created by the government. Candlesticks made from all natural paraffin wax are what you want!

The problem is not LEDs inherently, but the spectral power distribution and excessive intensity of the specific “white” LEDs on the market, whose light comes from a blue LED and not enough of which is absorbed by the yellow phosphor.

If cars switched to LED headlamps with a CCT of 2700 K or the like, they’d be much less objectionable.

I’ve taken to wearing orange safety glasses when I walk my dog at night and sometimes when I drive at night, so that the combination of street lamps + car headlamps doesn’t delay my sleep and cause bright-adaptation of my eyes. But I would really rather not be forced to take such dramatic and somewhat unpleasant countermeasures.

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#62

Post by usrusr »

Swizec wrote: post #48
kartan wrote: post #14

Earlier quoted context omitted.

> A year or two after a new, more intrusive format became ubiquitous, its performance would fall back to the old format's When Sweden changed driving side, that is exactly what happened. "The relatively smooth changeover saw a reduction in the number of accidents. On the day of the change, only 157 minor accidents were reported, of which only 32 involved personal injuries, with only a handful serious. On the Monday f…

The solution is simple: change driving sides every 10 years.

And when people get used to that, start each week with a new drive side bit polled from a cryptographically sound RNG. If that still isn't enough: quantum uncertainty, everybody does not know wether or not they are on the right side until they meet oncoming traffic.

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#63

Post by gravicle »

Swizec wrote: post #48
kartan wrote: post #14

Earlier quoted context omitted.

> A year or two after a new, more intrusive format became ubiquitous, its performance would fall back to the old format's When Sweden changed driving side, that is exactly what happened. "The relatively smooth changeover saw a reduction in the number of accidents. On the day of the change, only 157 minor accidents were reported, of which only 32 involved personal injuries, with only a handful serious. On the Monday f…

The solution is simple: change driving sides every 10 years.

Every 6 weeks

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#64

Post by jacobolus »

userbinator wrote: post #32
jacobolus wrote: post #27

Earlier quoted context omitted.

Any large bright signs at night should ideally restrict themselves to orange/red, and be of brightness appropriate to dark-adapted eyes. Even a lot of recent traffic signals have blue–green “go” lamps which are excessively bright. The new LED car headlights (especially seen on luxury cars) are universally awful: distracting, blinding, and wreck your eyes’ adaptation. When they show up on a tall vehicle like an SUV it…

The new LED car headlights (especially seen on luxury cars) are universally awful: distracting, blinding, and wreck your eyes’ adaptation. When they show up on a tall vehicle like an SUV it’s even worse. Headlight brightness is somewhat of a balance, between blinding oncoming traffic and not being able to see far enough ahead. Dark adaptation has its limits. (AFAIK it's actually HID lights which make up most of the r…

There are definitely some ridiculously bright LED lamps driving around my neighborhood, as is easy to confirm by looking at them through diffraction grating glasses.

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#65

Post by chrisseaton »

DrScump wrote: post #57

In Santa Clara, California, there are several crosswalks at intersections not controlled by a traffic light. There is an ongoing problem with cars not properly yielding to crossing pedestrians (I mean, like, ever ). I almost got killed in one twice in one week. As a driver, I get rude treatment (and some near-collisions) when I stop for pedestrians. A pedestrian was killed in the one near Halford a couple of months a…

> In Santa Clara, California, there are several crosswalks at intersections not controlled by a traffic light.

Isn't that what a zebra crossing is for? Give pedestrians permanent right of way so they can always go and don't need a light and everyone understands that they need to yield.

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#66

Post by vostrocity »

ChuckMcM wrote: post #44
malgorithms wrote: post #10

There is an analogy here to the slippery-slope of attention-getting ads on the Internet. Once upon a time an ad was just a static (not even animated) banner of a certain size and shape. 468x60 was one of the earliest, IIRC. Advertisers invented new formats ("skyscrapers", "xl-leaderboards", "300x250", and so on), and also they got animated, and then they started expanding outside their areas, and so on; each new ad t…

I have wondered if anyone has studied the 'Dole light' which in the US was the additional brake light added for additional visibility and to cut down on rear end accidents.

Better known as the 'CHMSL' (Center High-Mounted Stop Lamps)

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#67

Post by vostrocity »

DrScump wrote: post #57

In Santa Clara, California, there are several crosswalks at intersections not controlled by a traffic light. There is an ongoing problem with cars not properly yielding to crossing pedestrians (I mean, like, ever ). I almost got killed in one twice in one week. As a driver, I get rude treatment (and some near-collisions) when I stop for pedestrians. A pedestrian was killed in the one near Halford a couple of months a…

Similar to a few places in Los Angeles

Flashing red light = stop sign is in most people's driver's ed, but it seems like most people don't know how to react to it (like you, I see some people simply blow through and others wait indefinitely)

Re: 3D crosswalk in Iceland helps slow down speeding motorists

#68

Post by vostrocity »

chrisseaton wrote: post #65
DrScump wrote: post #57

In Santa Clara, California, there are several crosswalks at intersections not controlled by a traffic light. There is an ongoing problem with cars not properly yielding to crossing pedestrians (I mean, like, ever ). I almost got killed in one twice in one week. As a driver, I get rude treatment (and some near-collisions) when I stop for pedestrians. A pedestrian was killed in the one near Halford a couple of months a…

> In Santa Clara, California, there are several crosswalks at intersections not controlled by a traffic light. Isn't that what a zebra crossing is for? Give pedestrians permanent right of way so they can always go and don't need a light and everyone understands that they need to yield.

On a road with high traffic speed and not enough visibility of pedestrians waiting at the side of the road, most motorists won't yield
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