Flashing Yield Signs

[US71]

According to a post on Facebook, flashing Yield signs are coming soon to I-44 at Business 71 near Joplin.

I've seen flashing STOP signs in Texas, but this appears to be something new.

http://www.facebook.com/photo.php?pid=4952909&fbid=465949179742&id=106851169742

[Revive 755]

Shouldn't a yield sign flash yellow instead of red, especially with yellow meaning yield per the new flashing yellow turn arrows?

[US71]

Shouldn't a yield sign flash yellow instead of red, especially with yellow meaning yield per the new flashing yellow turn arrows?

BUT: Yield signs are no longer yellow. Beyond that, you'd have to ask MoDOT

[Alps]

Yellow lights imply going slow and the need for caution, but do not imply any need to stop.  The actual action to be taken at a Yield is to look at approaching traffic and stop if necessary.  Because a stop may be required, it's red and not yellow.