Signs specific to a state

[cockroachking]

It is an MUTCD standard sign (W14-3).

Section 2C.53  NO PASSING ZONE Sign (W14-3)

Standard: The NO PASSING ZONE (W14-3) sign (see Figure 2C-11) shall be a pennant-shaped isosceles triangle with its longer axis horizontal and pointing to the right. When used, the NO PASSING ZONE sign shall be installed on the left-hand side of the roadway at the beginning of no-passing zones identified by pavement markings or DO NOT PASS signs or both (see Sections 2B.36 and 3B.03).

[Revive 755]

New Jersey: signs associated with jughandles. "ALL TURNS FROM RIGHT LANE", and "U AND LEFT TURNS", the latter of which can be used for a loop-type jughandle, or a standard one where the motorist is instructed to turn left on the sidestreet.  The gore sign "ALL TURNS" used to be unique, but I think that has been added to the MUTCD.

Delaware has one instance of "ALL TURNS FROM RIGHT LANE" and "U and LEFT TURNS", on a loop jughandle.  I don't remember what year they were put in, but it was decades after the jughandle opened in 1983.

The ALL Turns From Right Lane was added into the 2009 MUTCD (it's the R3-23 in the 11th Edition MUTCD).  Longmeadow Parkway in Chicagoland has one for the IL 31 jughandle.  US 67 has a couple in the St. Louis suburbs.

[GaryV]

interesting in that it's mounted on the other shoulder from the intended audience

As noted above, Michigan has them all over. I've always seen them on the left side of the road. That's so if a someone is overtaking another vehicle, the driver can still see a sign if the vehicle being passed blocks visibility of the sign on the right.

[Road Hog]

I've seen the triangular No Passing sign in East Texas but not anywhere else in the state. Must be up to the TxDOT district.

[architect77]

I thought I posted this yesterday but I'm amsued by the signs at NC's weigh stations that remind truckers that they aren't at just any ol' truck scales but rather these are the real deal, lol.

ws2 by Stephen Edwards, on Flickr

[Bitmapped]

Ohio has sign code R22-H1: "NO PASSING WHEN SOLID YELLOW LINE IS IN YOUR LANE"

I've only seen a couple examples of this sign. One is on OH 39 westbound as you leave Carrollton: https://maps.app.goo.gl/FBp1uyZJYYJvrsY87

[Big John]

I've seen the triangular No Passing sign in East Texas but not anywhere else in the state. Must be up to the TxDOT district.

Are you talking about the MUTCD W14-3 No Passing Zone sign?

[lepidopteran]

A small rectangular sign reading "LEFT", placed atop a traffic signal face that permits left turns.  These are unique to Michigan -- not to be confused with a "Michigan Left". Other states use the MUTCD "Left Turn Signal" sign placed next to the signal, or perhaps below it if mounted on a stanchion or pole.

Many of these signals marked "LEFT", which back in the day were R-Y-GA, flashed the red aspect when the thru traffic got a green, in which case one could make a left after stopping. (Michigan is not the only state to have these.)  With these, another unique sign often appeared on the opposing corner.
"Left Turn Allowed
On Flashing Red
When Traffic Clears".

[fillup420]

Ohio has sign code R22-H1: "NO PASSING WHEN SOLID YELLOW LINE IS IN YOUR LANE"

I've only seen a couple examples of this sign. One is on OH 39 westbound as you leave Carrollton: https://maps.app.goo.gl/FBp1uyZJYYJvrsY87

I have seen a few of those in NC over the years, except the font is slightly different.

[JayhawkCO]

I know other states have avalanche signs. Any other than Colorado that mention long range blasting?

[thenetwork]

Forgive me if this was previous mentioned...

In Ohio, when there are multiple state/US routes that come together on a non-freeway, ODOT installs these uni-signs with each row a different route.  Sometimes, the route shield gets stretched:

https://maps.app.goo.gl/TZv9RYEDcF9ebdRP8?g_st=ac

[Bitmapped]

Forgive me if this was previous mentioned...

In Ohio, when there are multiple state/US routes that come together on a non-freeway, ODOT installs these uni-signs with each row a different route.  Sometimes, the route shield gets stretched:

https://maps.app.goo.gl/TZv9RYEDcF9ebdRP8?g_st=ac

ODOT's usage of this signage style is not at all consistent. More common practice is to not sign the direction and just put a double-ended arrow.

The example shown around the Medina square is the only one I know of where it only shows one direction for the route rather than two.

[PurdueBill]

Forgive me if this was previous mentioned...

In Ohio, when there are multiple state/US routes that come together on a non-freeway, ODOT installs these uni-signs with each row a different route.  Sometimes, the route shield gets stretched:

https://maps.app.goo.gl/TZv9RYEDcF9ebdRP8?g_st=ac

ODOT's usage of this signage style is not at all consistent. More common practice is to not sign the direction and just put a double-ended arrow.

The example shown around the Medina square is the only one I know of where it only shows one direction for the route rather than two.

I get lopping off one side on the ones in Medina so they are all similar signs, but I won't ever understand ODOT's aversion to using the 2-digit width version of their own unisign (M2-H7)...they almost always use the 3-digit version even if all the routes (like in Medina) are 1 or 2 digits. 

https://www.dot.state.oh.us/roadway/sdmm/SDMMSignFiles/M2-H7.pdf 

[kphoger]

Should this thread be in the Traffic Control board instead?


Are these signs unique to Texas?

[roadfro]

Forgive me if this was previous mentioned...

In Ohio, when there are multiple state/US routes that come together on a non-freeway, ODOT installs these uni-signs with each row a different route.  Sometimes, the route shield gets stretched:

https://maps.app.goo.gl/TZv9RYEDcF9ebdRP8?g_st=ac

ODOT's usage of this signage style is not at all consistent. More common practice is to not sign the direction and just put a double-ended arrow.

The example shown around the Medina square is the only one I know of where it only shows one direction for the route rather than two.

I get lopping off one side on the ones in Medina so they are all similar signs, but I won't ever understand ODOT's aversion to using the 2-digit width version of their own unisign (M2-H7)...they almost always use the 3-digit version even if all the routes (like in Medina) are 1 or 2 digits. 

https://www.dot.state.oh.us/roadway/sdmm/SDMMSignFiles/M2-H7.pdf 

I rather like the concept of this unisign. In cases where you have a lot of concurrent routes at a junction, I imagine it's easier to parse as a driver because the sign salad clutter is reduced.