[GreatOne]

I hate to say this, but I can't answer your question. I've read over 25 books on the assassination, but it's been about 5 years since I've re-read any of them. I do remember the route being published in the paper, and I remember that the route was changed slightly because of it. But staring at the obvious, I cannot give you an explanation as to why people were lined up in Dealey Plaza when it wasn't in the paper that morning. I can only think that people were told by cops or other people in the know where he'd be going.

Hate to not give you a satisfactory answer, but that's all my forgetful memory can recapture.

[willyboyishere]

Have you read Peter Dale Scott's "Deep Politics and the Death of JFK"? It's one of the best, and offers insights into Oswald no other book has.

[PatriotGames]

People knew the new route because barricades were up running around the corner near the Library/Book Depository.

[Bloody Sam Roberts]

Don't sweat it. My question was more or less rhetorical.
It has been 38 years and I would think if there was an answer, we'd have heard an answer by now.