Originally Posted by
capricorn23
Thank you Check Airman for your reply.
What do you mean with the "humanum factor" reason for MIA?
When what is now 08L was opened, it was designated 09L. The current 8R used to be 9L, and the runway to the south was 09R.
The story I was told is that people were getting a bit confused, seeing a 9L/C and not readily seeing the 3rd parallel. (Depending on the angle, the south runway can be a bit hard to see if you're going for one of the north runways.)
They were thus renamed as follows:
9L -> 8L
9C -> 8R
9R -> 9
Standing by to be corrected if necessary.