In the August 1988 Word Ways, Udo Pernisz introduced the concept of the pangrammatic highway. To refresh your memory, I will briefly describe the game as he plays it with his family. The object is to find all the letters of the alphabet, in sequence, on signs visible from the highway. These may be official highway signs or billboards and other stationary advertising signs; however, signs on cars themselves, such as bumper stickers and license plates, are excluded. In the basic game only one letter form each sign may be counted.
Eckler, Faith W.
"Revisiting The Panagrammatic Highway,"
Word Ways: Vol. 23
, Article 5.
Available at: https://digitalcommons.butler.edu/wordways/vol23/iss2/5