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Old 25.11.2019, 21:37
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can red light camera flash be forward facing?

Hello guys

I just saw a red flash driving in the intersection below :

https://www.google.com/maps/@46.5239...7i13312!8i6656


https://ibb.co/2M5y9xK
I was on Avenue de Chablais going from Malley to EPFL.

my speed was normal so the only possibility is that I passed the red light (which I highly doubt). How can one tell if it was flashing me on red or the car passing in the oposite direction?

Thanks
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Old 25.11.2019, 21:52
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Re: can red light camera flash be forward facing?

Are you sure it wasn’t one of the red flashing lights from the road crossing at the metro tracks? This sometimes gets me from the corner of my eye... looking like it’s from the traffic camera...
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Old 25.11.2019, 21:52
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Re: can red light camera flash be forward facing?

Yes they do. Specially red light cameras as the identity of driver is important if it had been red for more than 2 seconds. Up to 2 seconds it is an anonymous fine of CHF 250.

Wait for the bill and see. Maybe it was not your lane which had the green light. Maz be it was a car on a other lane which triggered it.
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Old 25.11.2019, 22:09
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Re: can red light camera flash be forward facing?

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Are you sure it wasn’t one of the red flashing lights from the road crossing at the metro tracks? This sometimes gets me from the corner of my eye... looking like it’s from the traffic camera...
No I am quiet sure it was the flash.
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Old 25.11.2019, 22:14
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Re: can red light camera flash be forward facing?

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Yes they do. Specially red light cameras as the identity of driver is important if it had been red for more than 2 seconds. Up to 2 seconds it is an anonymous fine of CHF 250.

Wait for the bill and see. Maybe it was not your lane which had the green light. Maz be it was a car on a other lane which triggered it.
Since there are two cameras in that junction (one for each direction), how can one tell which one is responsible for each direction? the one in the front or the one in the back?
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Old 25.11.2019, 22:25
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Re: can red light camera flash be forward facing?

I thought the flashes were pure bright white light.
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Old 25.11.2019, 23:04
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Re: can red light camera flash be forward facing?

Yes they can. Got flashed yesterday in a tunnel coming down from the Brünig
I was flashed from the front, then immediately again from behind. It was definitely me as I was all alone in that tunnel.

I was not in a hurry, car just seemed pleased to head home. LOL. So I expect the fine to be affordable, if the tolerance is of a kind amount, it might even be cheap. The only downside was that no more risks could be taken on the rest of the way (don't want to be proven a habitual speeder, do I).
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Old 25.11.2019, 23:32
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Re: can red light camera flash be forward facing?

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Yes they can. Got flashed yesterday in a tunnel coming down from the Brünig
I was flashed from the front, then immediately again from behind. It was definitely me as I was all alone in that tunnel.

I was not in a hurry, car just seemed pleased to head home. LOL. So I expect the fine to be affordable, if the tolerance is of a kind amount, it might even be cheap. The only downside was that no more risks could be taken on the rest of the way (don't want to be proven a habitual speeder, do I).
for speed cameras I know they do also in front. But was not sure about red light radar.
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Old 25.11.2019, 23:38
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Re: can red light camera flash be forward facing?

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for speed cameras I know they do also in front. But was not sure about red light radar.
Mine yesterday were red.

Flashing white in a tunnel could cause pretty bad accidents, I suspect, as it sure would give you a scare.
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Old 26.11.2019, 08:44
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Re: can red light camera flash be forward facing?

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Since there are two cameras in that junction (one for each direction), how can one tell which one is responsible for each direction? the one in the front or the one in the back?

Don't worry aboput such trivialitiesd, the Police will easily be able to work it out
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Old 26.11.2019, 09:29
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Re: can red light camera flash be forward facing?

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Don't worry aboput such trivialitiesd, the Police will easily be able to work it out
While you got a point, I had a situation like that once at Albisgüetli, where I knew of one camera but one in front of me, which I never noticed before, flashed me.
There were three possibilities also: 1) It flashed someone else, yes please. 2) I crossed the red light, not a good thought but possible as it turned to yellow just when I past it but yellow is not for stepping on the brakes like a nutter the moment one sees it - that's why it's yellow. 3) I've been speeding, not so good but better than possibility two.
I too pondered about it, I live in the sticks, I need my car.

Turned out I was slightly faster than 50km/h (probably because I saw the yellow from the corner of my eye, which explains I was flashed from the front, in the middle of the crossing probably), I think the fine was Fr. 40.00.

Depending on how often they check that radar, it can take long until you know. To follow Today only's advice is not a bad idea.

If it makes you feel better: I was once zapped in a tunnel in Lucerne (very dumb, I've know for decades where to expect them, so yes, I was annoyed about myself) and I never heard anything about it. As it's about two years ago I'm sure I won't anymore either.
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Old 26.11.2019, 18:07
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Re: can red light camera flash be forward facing?

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If it makes you feel better: I was once zapped in a tunnel in Lucerne (very dumb, I've know for decades where to expect them, so yes, I was annoyed about myself) and I never heard anything about it..
Interesting. Years ago I thought I got zapped in a tunnel and when I asked about it here, I was told that they don't put speed cameras in tunnels. As I was on a motorcycle, the forward flash either a) didn't recognize me b) was for someone else or c) wasn't really a speed camera flash.

Oh well - so far no tickets in tunnels that I know of!
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Old 26.11.2019, 18:28
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Re: can red light camera flash be forward facing?

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Interesting. Years ago I thought I got zapped in a tunnel and when I asked about it here, I was told that they don't put speed cameras in tunnels. As I was on a motorcycle, the forward flash either a) didn't recognize me b) was for someone else or c) wasn't really a speed camera flash.

Oh well - so far no tickets in tunnels that I know of!
I don't know how long "years ago" is exactly here but yes, they do.

Apparently they also have systems which take photos of you at two different points, then check based on the time it took you to get from one point to the other how fast you've been driving. I'm not sure they're really in use, I figure they are more expensive and basically it has to take pictures of innocent people (at least the first one )) which violates the data privacy act.
Just flashing us in red is definitely the easiest way.
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Old 27.11.2019, 18:08
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Re: can red light camera flash be forward facing?

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Apparently they also have systems which take photos of you at two different points, then check based on the time it took you to get from one point to the other how fast you've been driving. I'm not sure they're really in use, I figure they are more expensive and basically it has to take pictures of innocent people (at least the first one )) which violates the data privacy act.
Just flashing us in red is definitely the easiest way.
Your speed is measured twice if you get flashed (radar or similar). If the two results differ by more than 10km/h (for speeds up to 100km/h) or by more than 10% (above 100km/h) the measurements will be deemed invalid and you won't be fined.
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Old 27.11.2019, 18:44
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Re: can red light camera flash be forward facing?

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Your speed is measured twice if you get flashed (radar or similar). If the two results differ by more than 10km/h (for speeds up to 100km/h) or by more than 10% (above 100km/h) the measurements will be deemed invalid and you won't be fined.
I knew about the twice but not the other part. Interesting. Won't work for me this time though as all I did was take the foot off the throttle - not enough I'm afraid.

This is not good though (me thinks), knowing about it makes people step on the brakes when flashed the first time - if someone is right behind them ......
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Old 27.11.2019, 18:54
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Re: can red light camera flash be forward facing?

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Your speed is measured twice if you get flashed (radar or similar). If the two results differ by more than 10km/h (for speeds up to 100km/h) or by more than 10% (above 100km/h) the measurements will be deemed invalid and you won't be fined.
The time of two measurements and the time of the two flash might or might not happen at the very same time.

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I
Apparently they also have systems which take photos of you at two different points, then check based on the time it took you to get from one point to the other how fast you've been driving. I'm not sure they're really in use
Those systems are first and foremost distance measurements devices. Mostly done from bridges and only temporary (at least I am not aware of a permanent installed device). Same tolerances as for radar devices. See Art. 8 Abs. 1 Lit. j VSKV-ASTRA https://www.admin.ch/opc/de/classifi.../index.html#a8
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Old 27.11.2019, 19:21
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Re: can red light camera flash be forward facing?

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for speed cameras I know they do also in front. But was not sure about red light radar.
We have quite a few around here that do both front and read for red lights.

Tom
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Old 27.11.2019, 20:42
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Re: can red light camera flash be forward facing?

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The time of two measurements and the time of the two flash might or might not happen at the very same time.

Those systems are first and foremost distance measurements devices. Mostly done from bridges and only temporary (at least I am not aware of a permanent installed device). Same tolerances as for radar devices. See Art. 8 Abs. 1 Lit. j VSKV-ASTRA https://www.admin.ch/opc/de/classifi.../index.html#a8
Yep, almost at the same time. Wish I had a longer car.
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Old 28.11.2019, 13:00
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Re: can red light camera flash be forward facing?

Or it could be this:
https://www.dailymotion.com/video/xo0rae
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Old 28.11.2019, 13:49
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Re: can red light camera flash be forward facing?

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