Question about speeding cameras

Godot.

My question is - does anyone know the range in meters from which it detects?

When I was passing it today (as in almost level with it) 70 flashed up on the screen even though I was doing 45ish on a 60 road Won't be happy if a speeding fine notice comes in the post!

djimi

What screen? Do you mean one of those signs that flashes up your speed on the side of the road? Thats not a speed camera...

quadrifoglio verde

Godot. wrote: »

My question is - does anyone know the range in meters from which it detects?

When I was passing it today (as in almost level with it) 70 flashed up on the screen even though I was doing 45ish on a 60 road Won't be happy if a speeding fine notice comes in the post!

Are these the signs that tell you your speed? If so that won't give you a speeding ticket.
With regards speed vans I've heard 200, but not sure if that was in feet or metres so I treat it as metres because the difference Is massive.

Chimaera

If you can see the van/camera you're done. AFAIK they use laser detection which has a range of up to 1 km.

colm_mcm

If you were almost level then it was probably the car behind. .

I've never seen a speed trap that shows your speed, usually they're just 'slow down' signs rather than cameras.

djimi

Those "slow down" signs are also usually wildly inaccurate.

mb1725

Godot. wrote: »

My question is - does anyone know the range in meters from which it detects?

When I was passing it today (as in almost level with it) 70 flashed up on the screen even though I was doing 45ish on a 60 road Won't be happy if a speeding fine notice comes in the post!

70 kph = 45 mph (ish)

CiniO

djimi wrote: »

Those "slow down" signs are also usually wildly inaccurate.

I haven't seen one yet, which would be inaccurate.
All those I've seen in Ireland were exactly accurate.

colm_mcm

Any I've seem understate the speed vs what the car says I'm doing. Given that cars always overstate your actual speed I'd say they're pretty close.

CiniO

colm_mcm wrote: »

Any I've seem understate the speed vs what the car says I'm doing.

Exactly.

Given that cars always overstate your actual speed I'd say they're pretty close.

Those displays are always showing exact the same as my tachograph which was precisely calibrated. It also shows in line with GPS.
I believe then, that they show correct value.

djimi

CiniO wrote: »

I haven't seen one yet, which would be inaccurate.
All those I've seen in Ireland were exactly accurate.

Mayo County council must have stumped up for decent ones so! Any that I pass regularly don't really show the speed I'm going. Could be out by as much as 20kph.

slimjimmc

Chimaera wrote: »

If you can see the van/camera you're done. AFAIK they use laser detection which has a range of up to 1 km.

If it was a garda using a laser tripod or hand-held then you could perhaps be done from that range but (I've read elsewhere) camera vans use radar which is aimed at about 20 degrees or so across the road; your speed and photo are only recorded when you are much closer.

slimjimmc

djimi wrote: »

Mayo County council must have stumped up for decent ones so! Any that I pass regularly don't really show the speed I'm going. Could be out by as much as 20kph.

The ones in Kilkenny city are pretty spot on too. They are permanent installations, perhaps mobile units are less accurate.