ROUTE66 is the name of a famous highway in the United States, and later became the trademark of one of the most commonly used GPS navigation software on smartphones.

This should refer to the latter. As for the "1" in the upper right corner, if you look at the end of the article or the footer, it should be something like a comment.

The general meaning of this sentence is that

It may eventually become the mainstay of the so-called data super highway, or it may become like the United States by widening and adding new channels. The highway has the same existence as Route 66 in history.

I just translated it casually, don’t go into detail. .

This should be likening something (a network?) to the American highways that extend in all directions, connecting "data" everywhere, just like Route 66 does to the American highways.

Hope this helps.