On Sun, Jan 31, 2010 at 11:24 AM, Anthony <[email protected]> wrote: > On Sun, Jan 31, 2010 at 11:15 AM, John Smith <[email protected]>wrote: > >> Again, think railway tracks... how do railway tracks merge and split? >> > > Not like roadways. Trains can only drive along tracks. Those tracks are a > fixed distance apart. It's nothing like a highway. >
Oh yeah, and perhaps most importantly, trains can't switch tracks except in fixed locations. It's nothing like a highway.
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