This is quite interesting; never thought of giving map readers a visual clue to whether a street is a throughway or not... But this is just for visual represen

This is quite interesting; never thought of giving map readers a visual clue to whether a street is a throughway or not... But this is just for visual representation, and I think the shading is a little too drastic. There were some examples of some pretty long streets that were almost invisible. Another interesting catch by a very interesting website!