Materials for Making Traffic Signs - Reflective Sheeting, Posts, and Aluminum

Starting off with the traffic sign posts, learn what they are made of. The thing is that it usually depends on the jurisdiction of the local area, state, or county.

If you are going to place your sign along the interstate highway, you will have to consult or follow the rules specified by the US Department of Transportation. They are assigned on the regulation of signs in such area.

In other jurisdictions, woods are allowed as a material for posts. However, this material is not often used for the big highways and directional signagge compared to the previous years. Often these traffic sign posts, big or small, are crafted with steel frames welded together.

Read more at https://www.visigraph.com/traffic-signs/reflective-traffic-control-sign-how-road-signs-and-posts-are-constructed/

How Local Governments Regulate Traffic Signs

Generally, yes. Unless it had a traffic light and now you’re replacing it with signs. Of course, if there’s little traffic at that intersection anyway, it won’t make much actual difference where safety is concerned.

The newer USDOT codes, and I believe most “First World” nations as well, though, require the “diamond grade” reflective materials to be the basis for most intersection signs, so it’s almost like having a traffic light anyway.

Now, if there was no control at an intersection previously (a.k.a. an “unmarked intersection”), then it will be very likely that it is now a 4-way stop or that one direction will consistently have the right of way, and the other direction will be required to stop. Either way, if it is a semi-busy street or road, stop signs should make that intersection safer.

Full details of this posting can be found HERE.