In message , at 14:55:53 on
Sat, 25 Mar 2017, Recliner remarked:

From international arrivals,

When I was there people emerged from the customs, and were faced with a
left-right barrier, with greeters crowding along it. Most people then
carried on in the direction the majority exited from #11 and ended up
being met near #13.

So you have to add #11 to #13, and back again.

it's a short walk to the HEx exit (less than one sixth of the terminal
length), and a slightly longer one to the Tube (less than a quarter of
the terminal length).

Both are in the northern quartile of the terminal.

See the last page of
http://www.heathrow.com/file_source/Heathrow/Static/PDF/Maps/Heathrow_T5_Map.pdf

--
Roland Perry