More on Trump's Wall

We talked earlier about Trump's Wall, a planned physical barrier meant to stop the passage of non-US citizens across the southern border of the country into economic and social paradise in this post.

Upon reflection it doesn't seem that a terrestrial version of the proposed wall will be much of a problem in that such walls are now quite common in the US, at least in urban areas. These walls aren't meant to arrest human travel, however. Their purpose is stop the invasion of noise. They are the common noise barriers erected between limited access highways and populated neighborhoods.

There has been much experience in the erection of these walls so the project should be a simple and relatively inexpensive one.


Simple and inexpensive wall meant for sound abatement but probably effective in stopping access to the freeway. We might see a few thousand miles of this in the near future.