From: utzoo!decvax!harpo!ihps3!ihuxu!dafa
Newsgroups: net.general
Title: Interstate Highway numbering
Article-I.D.: ihuxu.110
Posted: Fri Sep 17 16:21:58 1982
Received: Tue Sep 21 09:59:42 1982

Circumferential interstate highways are assigned three digit route
numbers. The last two digits are the same as the interstate route
they connect to. But what is the significance of the first digit?

David Fay
ihuxu!dafa