Traffic light red thing?

[andrewjm]

I saw that the new taffic lights in houston's 610 west loop has a cylinder like red light that shines red when the lights are red... its like the size of those optical sensors used to see if an emergency vehicle is coming.

does anyone know what these red things do??

 

[RussianSoldier]

:camera: or ban.

 

[mugs]

No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

 

[minendo]

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

Just a warning.

 

[Evadman]

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

Emergency vehicles.

 

[mugs]

Originally posted by: Evadman

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

Emergency vehicles.

Doesn't that work the other way around? The emergency vehicles have a strobe that triggers the light to turn red. Why would the light have a strobe in it?

And minendo, I'm not sure what you mean.

 

[DrPizza]

Originally posted by: mugs

Originally posted by: Evadman

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

Emergency vehicles.

Doesn't that work the other way around? The emergency vehicles have a strobe that triggers the light to turn red. Why would the light have a strobe in it?

Because the light with the strobe in it is more attention getting and can be seen from a greater distance. I've seen a lot of them - generally on highways with 55mph traffic. Never in a city with 30 mph traffic.

 

[mugs]

Originally posted by: DrPizza

Originally posted by: mugs

Originally posted by: Evadman

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

Emergency vehicles.

Doesn't that work the other way around? The emergency vehicles have a strobe that triggers the light to turn red. Why would the light have a strobe in it?

Because the light with the strobe in it is more attention getting and can be seen from a greater distance. I've seen a lot of them - generally on highways with 55mph traffic. Never in a city with 30 mph traffic.

I guess that makes sense (although there are lights in Indiana that you can see from 2 miles away with no strobe). It just struck me as odd that I only saw them in one specific area on a road with tons of lights, and they were only on a few of the lights.

 

[dethman]

Originally posted by: mugs
No idea. I saw several traffic lights in PA that had a small white strobe light in the middle of the red light. Anyone know what that's there for?

as far as i can tell, they are supposed to call attention to the light. bugs the heck out of me though.

 

[aphex]

The best traffic lights i've ever seen were in Geneva, Switzerland.

They had a yellow light on the side of the road that would light 1-2 seconds before the light turned green. Must make for some fun street racing

 

[FrustratedUser]

No clue!
I saw a weird light the other day. Solid Red + blinking Yellow.