Light-up Stop Signs in Longview?

[US71]

I spent the weekend in Canton, Texas and came home via Kilgore, Longview and Texarkana. I found a couple nice bridges which I'll have on Flickr in the next day or two, but I also found what appear to be light-up Stop signs in downtown Longview, TX.
Anyone have more info on this?

[Road Hog]

Weren't you in Canton a little early for First Monday?

[US71]

Weren't you in Canton a little early for First Monday?

SCA Gathering (at the First Monday grounds  )

[bassoon1986]

There are light up yield signs as well in east tx. One in particular on an on ramp to I-20 in Waskom on a 2 way frontage road.

[cjk374]

The US 79 bypass around Homer has LED flashers around the stop signs at the LA 9 junction. This intersection has already had a fatality since its creation in 2011. I'm surprised they haven't installed traffic lights here yet.

[US71]

The US 79 bypass around Homer has LED flashers around the stop signs at the LA 9 junction. This intersection has already had a fatality since its creation in 2011. I'm surprised they haven't installed traffic lights here yet.

Linden Texas as LED Stops


as does Clinton, MO