Road-trip picnics are a casualty of our interstate system
Signs announcing roadside picnic tables once peppered America’s secondary roads and highways. Or so we call those byways now. Before the limited-access interstate system arrived in the 1960s, these roads were primary. America then was laced with a tangle of serviceable two-lane, hard-surfaced highways. Look at an old oil-company roadmap, if you can find one, to get the idea. Some roads were federal, some state, but all were emphatically open-access: get on anywhere, pull over wherever you like. They led through cities and towns, not around them; they traversed the countryside more than they cut through it. They required two-hands-on-the-wheel alertness in drivers, who got to know and respect the lay of the landscape.