yes, delivery truck or directions will often as for a "cross street" Since Broadway in NYC is over 12 miles long in Manhattan, and then continues (called Broadway for the most part,) but not always, all the way up to Montreal, a "cross reference" to where on Broadway is the cross street...

So if you were going to 1225 Broadway, the 'cross street' is 30th, but 1212 6th Avenue, and the cross street is 48th street! NY grid makes it easy to get around (1st street is about Houston, Below that is "lower Manhattan", and there is no rhyme or reason, above, that, the "streets" progress in a neat order (256th is close to the last, in NYC, but 234th St. or so is last in Manhattan (at least at Broadway!)

But Avenues start and stop.. and the numbers always start with 1-- so 1 Madison Avenue.. (23rd St.,) where Madison Avenue starts, and 185 Fifth Avenue (24th St.) are 184 numbers apart, but very close (physically) to each other. and one more block west, you'd be on 6th Ave (Avenue of the Americas for out of towners) and at building/lot number 700!

These are adresses I know, but the same examples could be found anywhere.. there are any number of guides to Manhattan that either give you a formula, of are set up as arrays, to find the cross street.
City's like Amsterdam or London, (or Boston) that don't have a ridged gridwork would find the idea of a cross street less useful.


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