There are four lifts, in a line east/west, which can be entered from either side (north or south) depending on the level.
These lifts are automatic, calling at all levels.
You go in and leave facing north.
You go in and leave facing south. Turn left (east) onto the Departures Concourse.
For the Mainline Station, turn left (east), then right (south) and right again (west) and find the lifts on your right.
You go in and leave facing north. Turn right (east) for the Arrivals concourse.
For the the Mainline Station, turn right (east) from the lifts, then right (south) then right (west). The lifts are on your right (north).
There are spoken announcements. There's a control panel on the east side with lighted indicators arranged, from the top:
At the bottom of the control panel are buttons:
HEATHROW TERMINAL 5 UNDERGROUND STATION
© 2012, Terry Robinson