Crossing lights? - Electronic Circuits Projects Diagrams Free

things · 26th November 2007, 07:59 AM

Hi all,
I just saw a post on another forum, and apparently there is a code that can change all the other traffic lights red, and you can cross straight away. So basically you walk up to the button, enter thses pulses, and it will let you cross??? The code was:
3 short pushes
2 long pushes
1 short push
2 long pushes
3 short pushes
Numerous people have tried it, and apparently it works. I have yet to try it myself, but anyone know if there is such a thing?

theinfamousbob · 26th November 2007, 10:51 AM

I've heard about it before; apparently it's used for emergency personnel crossing the street or something.

I'll have to try it downtown sometime. That should prove interesting.

things · 26th November 2007, 10:54 AM

yeah, thats what i think it is for too. I don't know if it will work everywhere, but i'm going to try it here tommorow, should be awesome if it works!

HarveyH42 · 26th November 2007, 11:52 AM

I barely trust the lights when they function normally, but we get a lot of tourist traffic. They come from all over the world, with different rules and habits, most are distracted (maps, cellphones, arguing, eating, taking pictures). Fortunately, I seldom need to cross roads with lights anymore. I'd imagine there are several emergency and test codes. It would be interesting to get a look at the control program.

Pommie · 26th November 2007, 02:32 PM

Sounds like a myth. Why would police etc. spend time pressing silly buttons, they just put up their hand and walk. Even someone covered in dust can walk out in the road and stop the traffic!!

Mike.

crusty · 26th November 2007, 05:40 PM

Quote:

Originally Posted by things

Hi all,
I just saw a post on another forum, and apparently there is a code that can change all the other traffic lights red, and you can cross straight away. So basically you walk up to the button, enter thses pulses, and it will let you cross??? The code was:
3 short pushes
2 long pushes
1 short push
2 long pushes
3 short pushes
Numerous people have tried it, and apparently it works. I have yet to try it myself, but anyone know if there is such a thing?

wouldn't by the time you spent punching all that into a button, that it would probably be timed out anyways?

Kinda reminds me of this..
http://www.metacafe.com/watch/455690...iginal_upload/

rmn_tech · 27th November 2007, 12:38 AM

When you press the button it basicaly sets a latch. So any further presses will have no effect until the circuit is reset, either by the light sequence or as in modern systems pedestrian detecting radar senses that the crossing is clear.

So entering any type of code is a waste of time.

theinfamousbob · 27th November 2007, 01:33 AM

Quote:

Originally Posted by rmn_tech

When you press the button it basicaly sets a latch. So any further presses will have no effect until the circuit is reset, either by the light sequence or as in modern systems pedestrian detecting radar senses that the crossing is clear.

So entering any type of code is a waste of time.

http://en.wikipedia.org/wiki/Pedestrian_crossing

Quote:

Originally Posted by Wikipedia

Contrary to popular belief that the buttons are placebos, most buttons do work, but some only at certain times of day and even certain times of the year.

Only thing is I never see buttons around anymore.

mneary · 27th November 2007, 02:26 AM

Quote:

When you press the button it basicaly sets a latch. So any further presses will have no effect until the circuit is reset, either by the light sequence or as in modern systems pedestrian detecting radar senses that the crossing is clear.
So entering any type of code is a waste of time.

Your location (country, state, etc.), experiences, and source of data would be helpful.

things · 27th November 2007, 04:31 AM

well some people have done it, and it worked for them?

audioguru · 27th November 2007, 05:43 AM

I have timed a traffic light without pressing the pedestrian button and with pressing the button.

It doesn't speed up the light change. It just extends the duration of the light for me to walk across before it changes so I don't get run down.

rmn_tech · 27th November 2007, 01:36 PM

Quote:

Originally Posted by mneary

Your location (country, state, etc.), experiences, and source of data would be helpful.

Location Uk

Experience Common sense

Traffic control on main roads especially during busy periods is not left to the whim of a few pedestrians.

Most pedestrian lights are tied to traffic light sequencing on nearby traffic (junction) control lights. With these lights pressing the button does nothing other than light an indicator for the pedestrian to show that the button was pressed. With control of the pedestrian light being handled by the main traffic control system. It also informs the main system that at the correct time in the main control sequence it needs to alter the state of the crossing light

audioguru · 27th November 2007, 01:54 PM

Some of our new pedestrian crossing lights have a countdown that shows exactly when a pedestrian might get run down: FIVE, FOUR, THREE, TWO, ONE, ZERO squash!

HarveyH42 · 27th November 2007, 03:38 PM

Quote:

Originally Posted by audioguru

Some of our new pedestrian crossing lights have a countdown that shows exactly when a pedestrian might get run down: FIVE, FOUR, THREE, TWO, ONE, ZERO squash!

We have those here too. There is an orange hand for stop while it counts down. Kind of had an urge to cover three of the fingers with black tape sometime...

audioguru · 27th November 2007, 07:21 PM

Quote:

Originally Posted by HarveyH42

Kind of had an urge to cover three of the fingers with black tape sometime...

They are made with an optional middle finger sticking up when the countdown is finished but my city didn't want to pay extra for it.

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26th November 2007, 07:59 AM	(permalink)
things	Crossing lights? Hi all, I just saw a post on another forum, and apparently there is a code that can change all the other traffic lights red, and you can cross straight away. So basically you walk up to the button, enter thses pulses, and it will let you cross??? The code was: 3 short pushes 2 long pushes 1 short push 2 long pushes 3 short pushes Numerous people have tried it, and apparently it works. I have yet to try it myself, but anyone know if there is such a thing? __________________ The 3 laws of science.... 1. If it smells bad, It's chemistry. 2. If it's mushy, It's biology. 3. If it doesn't work, It's physics. www.laserpointerforums.com A forum for disscusion of lasers and laser shows! www.laserchat.org IRC chat for laser and electronic related stuff.

26th November 2007, 10:51 AM	(permalink)
theinfamousbob	I've heard about it before; apparently it's used for emergency personnel crossing the street or something. I'll have to try it downtown sometime. That should prove interesting. __________________ -Ian

26th November 2007, 10:54 AM	(permalink)
things	yeah, thats what i think it is for too. I don't know if it will work everywhere, but i'm going to try it here tommorow, should be awesome if it works! __________________ The 3 laws of science.... 1. If it smells bad, It's chemistry. 2. If it's mushy, It's biology. 3. If it doesn't work, It's physics. www.laserpointerforums.com A forum for disscusion of lasers and laser shows! www.laserchat.org IRC chat for laser and electronic related stuff.

26th November 2007, 11:52 AM	(permalink)
HarveyH42	I barely trust the lights when they function normally, but we get a lot of tourist traffic. They come from all over the world, with different rules and habits, most are distracted (maps, cellphones, arguing, eating, taking pictures). Fortunately, I seldom need to cross roads with lights anymore. I'd imagine there are several emergency and test codes. It would be interesting to get a look at the control program.

26th November 2007, 02:32 PM	(permalink)
Pommie	Sounds like a myth. Why would police etc. spend time pressing silly buttons, they just put up their hand and walk. Even someone covered in dust can walk out in the road and stop the traffic!! Mike.

27th November 2007, 12:38 AM	(permalink)
rmn_tech	When you press the button it basicaly sets a latch. So any further presses will have no effect until the circuit is reset, either by the light sequence or as in modern systems pedestrian detecting radar senses that the crossing is clear. So entering any type of code is a waste of time.

27th November 2007, 04:31 AM	(permalink)
things	well some people have done it, and it worked for them? __________________ The 3 laws of science.... 1. If it smells bad, It's chemistry. 2. If it's mushy, It's biology. 3. If it doesn't work, It's physics. www.laserpointerforums.com A forum for disscusion of lasers and laser shows! www.laserchat.org IRC chat for laser and electronic related stuff.

27th November 2007, 05:43 AM	(permalink)
audioguru	I have timed a traffic light without pressing the pedestrian button and with pressing the button. It doesn't speed up the light change. It just extends the duration of the light for me to walk across before it changes so I don't get run down. __________________ Uncle $crooge

27th November 2007, 01:54 PM	(permalink)
audioguru	Some of our new pedestrian crossing lights have a countdown that shows exactly when a pedestrian might get run down: FIVE, FOUR, THREE, TWO, ONE, ZERO squash! __________________ Uncle $crooge