off topic. intersection lights

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mxxmikexx

Silver - Posts: 796

Joined: September 18, 2002

Location: United States

Posted: April 20, 2004 at 4:34 PM / IP Logged

i know this question is off topic, but an installer might know this. Does anyone know what makes the intersection lights change to green when emergency vehicles approach an intersection? I've noticed on the light poles that there appears to be some sort of receiver box below the clear/white light that starts to flash when an emergency vehicle is approaching. just curious.......

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profuse007

Gold - Posts: 2,015

Joined: October 20, 2002

Location: Texas, United States

Posted: April 20, 2004 at 4:51 PM / IP Logged

this will clearly explain ur curiousity

Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

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jrilla

Gold - Posts: 1,498

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Joined: November 19, 2002

Location: North Dakota, United States

Posted: April 20, 2004 at 5:39 PM / IP Logged

I haven't read this whole article, but here is something about that.

http://www.detnews.com/2003/commuting/0310/26/a01-307303.htm

J Rilla

Owner/Installer

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tcool

Copper - Posts: 100

Joined: September 06, 2003

Location: United States

Posted: April 20, 2004 at 5:39 PM / IP Logged

Emergency vehicles are equipped with the MIRT system to change the lights to green.

http://www.themirt.com/

There are places on the net you can buy these. Very illegal.

bzzzzttttt

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auex

Platinum - Posts: 5,041

Joined: December 23, 2002

Location: Arizona, United States

Posted: April 20, 2004 at 6:31 PM / IP Logged

The actual problem is that they are not illegal. There are no laws concerning infared devices with the fcc or any other government agency. Another problem is there is currently no way to detect them by police.

Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

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off topic. intersection lights

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