As far as I know, the 8 APCH markings denote that the taxiway will cross the approach/departure of a runway. In this case runway 8.
Aharon wrote:
I know websites telling me what terminals at KPHL that specific airlines use BUT I do not know what specific gate British Airways 777 or U.S. Airways A330 or Lufthansa 747 or Mexicana 767 usually parks at? Does anybody know?
http://flightaware.com is your friend. On the right hand side of the page, under the arrival airport, it tells you the gate.
Also, why not use the cargo ramp for unloading cargo?
Ryan