In 1936 , Hugo Green published The Negro Motorist Green Book. It was a travel guide for African American travelers that provided information about lodgings, restaurants and other businesses that they could patronize without discrimination.
The guide which was published until 1964, found a readership because while blacks knew which businesses were friendly in their hometowns, it could be difficult to discern which restaurants, beauty shops and night clubs were off-limits or hostile when they were on the road.
Click on the link below to see a short version of the guide.
NPR Radio did a program discussing "The Green Book". Here's the link:
Here's a commercial from the late 1950's encouraging people to buy Chevrolet cars and travel the USA.