Tunnel Traffic Monitoring

[snozzle]

so no more tunnel runs then?

[R32 Driver]

I went out and checked both tunnels tonight and didnt see anything...

Ive seen the ones in Sydney so i know what they look like however there was nothing out of the norm?

You sure your not just seeing things Bubba?

Edited July 10, 2010 by R32 Driver

[ossie_21]

I went out and checked both tunnels tonight and didnt see anything...

Ive seen the ones in Sydney so i know what they look like however there was nothing out of the norm?

You sure your not just seeing things Bubba?

+1, went through both ways tonight to & from the cas.

[bubba]

Definitely there, I had just left work so I was quite sober

I'd stop and take some photos but it might look a bit sus will hook the video camera up though and go through slow like.

Edited July 10, 2010 by bubba

[aiball]

Went through last night westbound, didn't see it nor did radar detector go off.

I assume these radar things are wall mounted ?

Edited July 11, 2010 by aiball

[R32 Driver]

If there the same as the ones used in Sydney then yes they should be wall mounted

[bubba]

Wall mounted up high on the right hand side, big bulbous looking thing on a stainless shaft,

On friday the 1st & 2nd ones east bound set my detector off but the 3rd one didn't. This morning I went through both ways and none of them set it off (there were the same things on the west bound side, right hand wall).

I go through the tunnel every morning and afternoon so we'll see if any are on tomorrow..

They might not be radars but I find it highly suspicious, I have never seen or noticed them before and my detector has never, ever gone off in the tunnel. I'm also pretty certain it was the things on the wall setting it off as it stopped once I was ~20m past the 1st one and it started up again the same distance before the 2nd one, then stopped ~20m past it..

[bubba]

Nothing set it off today in either direction.

[3LGODZILA]

was it ka band? if it was just k band may have been a copper behind/infront maybe?

[IEatPelicans]

whatever they are, they arent issuing fines yet. The government has to publish a notice in the government gazette before it can use a new speed detection device against motorists. the only fixed device that is currently gazetted is the new combination redlight/speed cameras.

[snozzle]

i googled "radars in graham farmer tunnel" and found nothing so im pretty sure its something else or something they r just testing atm, not in full swing yet

[Hanaldo]

Quick google search for "Graham Farmer Tunnel Speed":

Taken from www.mainroads.wa.gov.au Intelligent Transport Systems Strategy.

"Strategy 3.4 – Support Police enforcement

activities

a) Install Graham Farmer Freeway tunnel speed

cameras when required by the Police."

Judging by that document, it sounds as if police are able to setup speed cameras in the tunnel if and when they want.

[GTRPowa]

They can't do you for speeding in the tunnel based on the camera footage because they don't have a proven scientific approach to proving it.

Just to run a quick theory by you on that. If the cameras are digital by the nature of the medium they record on, most lock to specific frame rates, for arguments sake 30fps.

Whats to say they can't simply derive how many 'frames' it takes you to cover a certain distance, say from one broken line on the road to the next? They can (with quite a decent accuracy) work out how fast you were going.

It's one of the reasons that speed cameras in my area have extra triangles drawn on the road now. They take several shots and it simply adds to the case (as usable evidence) in court.

All they need is a pre-determined distance and time (which is worked out by how many frames per second a video camera is recording at).

[stormtrooper]

What I was getting at is they don't have an approved method for determining speed based on the footage. If they had a reference point then yeah it'd be a different story.

[bubba]

was it ka band? if it was just k band may have been a copper behind/infront maybe?

It was K band, if it was a cop then it was a huge coincidence that it went off next to two of the suspicious units..

I would imagine they will have to do a lot of testing to iron out the bugs before anything became operational.

OR

They are something completely different.. I had a mate try to tell me they were air monitoring devices

[dan_the_man]

Wall mounted up high on the right hand side, big bulbous looking thing on a stainless shaft,

On friday the 1st & 2nd ones east bound set my detector off but the 3rd one didn't. This morning I went through both ways and none of them set it off (there were the same things on the west bound side, right hand wall).

I go through the tunnel every morning and afternoon so we'll see if any are on tomorrow..

They might not be radars but I find it highly suspicious, I have never seen or noticed them before and my detector has never, ever gone off in the tunnel. I'm also pretty certain it was the things on the wall setting it off as it stopped once I was ~20m past the 1st one and it started up again the same distance before the 2nd one, then stopped ~20m past it..

you mean those things that look like the silencer you can temp put in the end of an exhaust? they've always been there.

since before you were born

[bubba]

you mean those things that look like the silencer you can temp put in the end of an exhaust? they've always been there.

since before you were born

Is that so?

[dan_the_man]

yea before the dinosaurs.

http://www.skylinesaustralia.com/forums/Po...ar-t170095.html

[Topaz]

First of all, how can you have 2 first of alls?

Second of all these cameras were installed by the security guys who work for my company :). I can ask them the details of the "monitoring" but from what the cameras are they do not have speed recording in them.

P.S. They start out as white cameras and are sprayed black.

P.P.S. They are always heading down to sort out issues with the system. 2 of them were there until 2am a on Sunday morning I think.

[bubba]

yea before the dinosaurs.

http://www.skylinesaustralia.com/forums/Po...ar-t170095.html

Very interesting, but no-one knows what they are.. if they are air monitoring devices, why are they pointing at traffic?