Non-MUTCD-compliant W1/2 turn/curve warning signs?

[hotdogPi]

One of the weirdest I've seen in Texas (also posted in another thread):
https://www.google.com/maps/@30.149183,-98.0537998,3a,15y,116.05h,85.19t/data=!3m6!1e1!3m4!1sHa4bnBGNVY7vV7iJ1KGfDA!2e0!7i13312!8i6656

I can't tell if it looks more like a 4 or a seatbelt.

Reminds me of analyzing bridges in my statics class.

Both connection points are pin connected, and all segments are rigid (but the one on the right is obviously not straight). There is 400 lb of tension in the top left line (the diagonal one), and each segment weighs 100 lb. What is the force in the horizontal line?

(No, I didn't solve this myself.)

[US71]

https://goo.gl/maps/iHZkMN44AKconYHi8

This is along old AR 68 (US 412) west of Tontitown

[TheGrassGuy]

One of the weirdest I've seen in Texas (also posted in another thread):
https://www.google.com/maps/@30.149183,-98.0537998,3a,15y,116.05h,85.19t/data=!3m6!1e1!3m4!1sHa4bnBGNVY7vV7iJ1KGfDA!2e0!7i13312!8i6656

I can't tell if it looks more like a 4 or a seatbelt.

There are not one, but two versions of this type of sign near where I live, but straight. Is this type of signage at all unusual?

https://goo.gl/maps/iHZkMN44AKconYHi8

This is along old AR 68 (US 412) west of Tontitown

How come so many of these are in Arkansas? Forgive me if this is blatantly incorrect, but does it have anything to do with the fact that ARDOT is one of the worst state DOTs in the nation?

[US71]

One of the weirdest I've seen in Texas (also posted in another thread):
https://www.google.com/maps/@30.149183,-98.0537998,3a,15y,116.05h,85.19t/data=!3m6!1e1!3m4!1sHa4bnBGNVY7vV7iJ1KGfDA!2e0!7i13312!8i6656

I can't tell if it looks more like a 4 or a seatbelt.

There are not one, but two versions of this type of sign near where I live, but straight. Is this type of signage at all unusual?

https://goo.gl/maps/iHZkMN44AKconYHi8

This is along old AR 68 (US 412) west of Tontitown

How come so many of these are in Arkansas? Forgive me if this is blatantly incorrect, but does it have anything to do with the fact that ARDOT is one of the worst state DOTs in the nation?

Probably that and our roads go every which way.  A few years back, they phased out the older side road signs that used a narrower line to indicate the side road/lower priority road..

[kphoger]

https://goo.gl/maps/iHZkMN44AKconYHi8

This is along old AR 68 (US 412) west of Tontitown

It isn't entirely clear if that's MUTCD-compliant or not (well, if the trunk line had an arrowhead, that is).  The MUTCD provision for making custom combination signs limits them to "no more than one Cross Road or two Side Road symbols".  So the question is this:  does "one cross road and one side road symbol" fall within that limit or not?

[andrepoiy]