The three met back at the place where the corridors crossed.
They came to a place where the corridor crossed another corridor.
I was the first one on the job; I saw someone at the point where the corridors cross.
Two central corridors on either side cross the building, with the east-west one providing access to the stairs at either end.
Where the corridor crossed another he stopped, uncertain which way to go.
A wider, busier corridor crossed theirs at right angles.
The corridor is crossing with another 4 corridors:
The big man had stopped at a place where another corridor crossed the one down which they had been traveling.
The farther they moved away from the entrance, the more frequently other corridors crossed theirs.
Four short corridors crossed it in the center, intersecting at a row of doors.