I recently noticed and was bewildered that the…

I recently noticed and was bewildered that the coloring and notation of Western Avenue in LA changed to that of a highway, with the yellow color and the numbering “258” – looked it up and it turns out to be something known as an “unconstructed state highway” – “their routings have been defined by state law, but no route has been adopted by the California Department of Transportation” – whatever that means.