Even the Train has been swamped

Usually the E is full and busy.  But the last few days, as I have gotten very busy, the E has gotten even busier.
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A train came a little after this picture - and of course everyone couldn't get one.  The conductor said, "Please stand away from the doors.  Another train is right behind this one."
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With that I threw myself on this train because I have heard that line of crap before.  This is what that means.  Either:
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1. The "another train" is the C not the E and doesn't go where we want.
2. The "another train" is even more full than this one.
3. The "right behind this one" means tomorrow.
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In any case, the only thing worse than a full ass train is the one "right
behind it"