AARoads Forum

National Boards => General Highway Talk => Traffic Control => Topic started by: mjb2002 on March 04, 2013, 07:51:00 PM

Title: Type XI sheeting on post mounted Street Name signs
Post by: mjb2002 on March 04, 2013, 07:51:00 PM
From what I've read, Type XI sheeting is allowed on Street Name signs. However, no municipality that I know of in my area has used such sheeting for the signs.

Have any of you ever spotted Type XI sheeting on Street Name signs?
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: Scott5114 on March 08, 2013, 02:52:37 PM
What's Type XI sheeting again?
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: Alps on March 11, 2013, 09:50:06 PM
It's the one that's had no number for the last several years. "DG cubed" is the propietary 3M product. I forget the technical term. It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: Scott5114 on March 12, 2013, 05:14:51 AM
Hm. Don't think I've ever seen it. Then again, I suck at distinguishing sheeting types. My eye tends to quantize sheeting into "silver scotchlite", "engineer grade", "high intensity"/"that stuff with the honeycomb mesh".
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: agentsteel53 on March 12, 2013, 07:18:28 PM
Quote from: Steve on March 11, 2013, 09:50:06 PM
It's the one that's had no number for the last several years. "DG cubed" is the propietary 3M product. I forget the technical term. It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.

is it the same as "prismatic high intensity" sheeting?  which everyone seems to be using now.
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: agentsteel53 on March 12, 2013, 07:19:50 PM
Quote from: Scott5114 on March 12, 2013, 05:14:51 AM
Hm. Don't think I've ever seen it. Then again, I suck at distinguishing sheeting types. My eye tends to quantize sheeting into "silver scotchlite", "engineer grade", "high intensity"/"that stuff with the honeycomb mesh".

oh, silver scotchlite is engineer grade.  I had them incorrect when I first told you about them.  the greenish stuff is "engineer grade silver scotchlite" and the white stuff is post-1979 "engineer grade scotchlite".

non-engineer-grade scotchlite is the rough beaded stuff with no clear protective coating on the front.  very, very rarely seen in circulation these days.  it was invented in 1938.  engineer-grade (with clear protective coating) was invented in 1950.
Title: Re: Type XI sheeting on post mounted Street Name signs
Post by: vtk on March 13, 2013, 12:52:52 AM
Quote from: Steve on March 11, 2013, 09:50:06 PM
It's one of the ones that looks like a rainbow when it's sunny so no one wants to use it.

You mean like my shiny sign illustrations?  My avatar even has that effect (and I'm not talking about the vertical-striped background).