Alignment
Alignment
The planned direction of a tunnel or other roadway driven irrespective of coal seam or orebody structure; the planned direction of longwall panels or face lines.
Formation or position in line, or, more properly, in a common vertical plane
he laying out of the axis of a tunnel by instrumental work.
In railway or highway surveying, the ground plan, showing the alignment or direction of the route to be followed, as distinguished from a profile, which shows the vertical element.
The act of laying out or regulating by line; adjusting to a line.
Time in Riyadh 
at any time
