Jackie wrote >Des, those little old highways are so much more interesting than the speedy Interstates
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In summer the Interstate 93 near the N.H. seacoast is clogged with people heading for beach and mountains. Especially on long weekends!
If needs be we travel at those times we take the back roads where we may have to go more slowly but at least we are "turning a wheel."
Some of my more enjoyable days, travelling several times across the USA, were spent on roads parallel to Interstates.
I got to my destination ... perhaps a bit more slowly but certainly with less stress and the added bonus being that I "saw" the country.
wow