Construction Zone - AFAD in Kansas

[WichitaRoads]

I was driving US 75 between Burlingame and BETO Junction in Kansas today, and got caught in a construction zone. They were patching asphalt and had us down to one lane with a Pilot Car. Instead of the flagger, however, they had a signal. Not the typical, though. [EDIT - I now know this to be an AFAD.]

Wish I could have got a pic, but the light was a two light signal unit, red and yellow, pillar-style. It was a portable, self-contatined unit, that also had a flimsy gate arm that came down across the lane, and a small yellow light on the back side. When stopped, the light was solid red. When the pilot car was ready, the arm went up, the yellow light lit, and flashed. It was kind of HAWK-ish to me, but with just one light in each of the two colors.

I've never seen this before. Usually, in Kansas it is a flagger or a traditional stoplight at bridge-work. Anybody see these? It caught me off-guard, but I kinda liked its goal... the falshing yellow helps remind to slow down better than standard green... but with a pilot car, you go his speed anyway.

Thoughts?
ICTRds

[andrewkbrown]

I saw them in SW Ohio about 4-5 years ago, on OH 28 during some sewer pipe installation.

http://www.ceunbound.com/index/siteblog-post-action/id.603/title.automated-traffic-control-devices-protect-flaggers-from-driving-hazards.

[WichitaRoads]

I saw them in SW Ohio about 4-5 years ago, on OH 28 during some sewer pipe installation.

http://www.ceunbound.com/index/siteblog-post-action/id.603/title.automated-traffic-control-devices-protect-flaggers-from-driving-hazards.

That's the exact one... minus the sun-shield around the light.

ICTRds